feat(elasticloadbalancingv2): connection logs for ALB (#30599)

### Reason for this change
ALB can output connection logs as well as access logs to the S3 bucket, but this is not yet supported by L2 Construct.
https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-connection-logs.html

### Description of changes
The implementation is almost the same as for access logs.
However, since connection logs are not supported by NLB, but only by ALB, the `logConnectionLogs` method is added to the `ApplicationLoadBalancer` instead of the `BaseLoadBalancer`.

The needed BucketPolicy is described in the documentation only as follows, but to support buckets that still use the ACL, it is necessary to set the same policy that is currently set in the access logs.
```json
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::elb-account-id:root"
      },
      "Action": "s3:PutObject",
       "Resource": "arn:aws:s3:::bucket-name/prefix/AWSLogs/aws-account-id/*"
    }
  ]
}
```
https://docs.aws.amazon.com/elasticloadbalancing/latest/application/enable-connection-logging.html#attach-bucket-policy-connection

### Description of how you validated changes
add unit tests and integ tests.


### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk-testing/framework-integ/test/aws-elasticloadbalancingv2/test/integ.alb.extended.log.js.snapshot/aws-cdk-elbv2-integ.template.json

@@ -412,6 +412,20 @@
      {
       "Key": "access_logs.s3.prefix",
       "Value": ""
+     },
+     {
+      "Key": "connection_logs.s3.enabled",
+      "Value": "true"
+     },
+     {
+      "Key": "connection_logs.s3.bucket",
+      "Value": {
+       "Ref": "LBALBConnectionLogsBucket4BFA48DB"
+      }
+     },
+     {
+      "Key": "connection_logs.s3.prefix",
+      "Value": ""
      }
     ],
     "Scheme": "internet-facing",
@@ -434,7 +448,8 @@
     "Type": "application"
    },
    "DependsOn": [
-    "LBALBAccessLogsBucket6AE92937",
+    "LBALBAccessLogsBucketPolicy1E4EBAFE",
+    "LBALBConnectionLogsBucketPolicy62509153",
     "VPCPublicSubnet1DefaultRoute91CEF279",
     "VPCPublicSubnet1RouteTableAssociation0B0896DC",
     "VPCPublicSubnet2DefaultRouteB7481BBA",
@@ -647,6 +662,185 @@
     }
    }
   },
+  "LBALBConnectionLogsBucket4BFA48DB": {
+   "Type": "AWS::S3::Bucket",
+   "Properties": {
+    "BucketEncryption": {
+     "ServerSideEncryptionConfiguration": [
+      {
+       "ServerSideEncryptionByDefault": {
+        "SSEAlgorithm": "AES256"
+       }
+      }
+     ]
+    },
+    "LoggingConfiguration": {
+     "LogFilePrefix": "selflog/"
+    },
+    "PublicAccessBlockConfiguration": {
+     "BlockPublicAcls": true,
+     "BlockPublicPolicy": true,
+     "IgnorePublicAcls": true,
+     "RestrictPublicBuckets": true
+    },
+    "VersioningConfiguration": {
+     "Status": "Enabled"
+    }
+   },
+   "UpdateReplacePolicy": "Retain",
+   "DeletionPolicy": "Retain"
+  },
+  "LBALBConnectionLogsBucketPolicy62509153": {
+   "Type": "AWS::S3::BucketPolicy",
+   "Properties": {
+    "Bucket": {
+     "Ref": "LBALBConnectionLogsBucket4BFA48DB"
+    },
+    "PolicyDocument": {
+     "Statement": [
+      {
+       "Action": "s3:*",
+       "Condition": {
+        "Bool": {
+         "aws:SecureTransport": "false"
+        }
+       },
+       "Effect": "Deny",
+       "Principal": {
+        "AWS": "*"
+       },
+       "Resource": [
+        {
+         "Fn::GetAtt": [
+          "LBALBConnectionLogsBucket4BFA48DB",
+          "Arn"
+         ]
+        },
+        {
+         "Fn::Join": [
+          "",
+          [
+           {
+            "Fn::GetAtt": [
+             "LBALBConnectionLogsBucket4BFA48DB",
+             "Arn"
+            ]
+           },
+           "/*"
+          ]
+         ]
+        }
+       ]
+      },
+      {
+       "Action": "s3:PutObject",
+       "Condition": {
+        "ArnLike": {
+         "aws:SourceArn": {
+          "Fn::GetAtt": [
+           "LBALBConnectionLogsBucket4BFA48DB",
+           "Arn"
+          ]
+         }
+        },
+        "StringEquals": {
+         "aws:SourceAccount": {
+          "Ref": "AWS::AccountId"
+         }
+        }
+       },
+       "Effect": "Allow",
+       "Principal": {
+        "Service": "logging.s3.amazonaws.com"
+       },
+       "Resource": {
+        "Fn::Join": [
+         "",
+         [
+          {
+           "Fn::GetAtt": [
+            "LBALBConnectionLogsBucket4BFA48DB",
+            "Arn"
+           ]
+          },
+          "/selflog/*"
+         ]
+        ]
+       }
+      },
+      {
+       "Action": "s3:PutObject",
+       "Effect": "Allow",
+       "Principal": {
+        "AWS": "arn:aws:iam::797873946194:root"
+       },
+       "Resource": {
+        "Fn::Join": [
+         "",
+         [
+          {
+           "Fn::GetAtt": [
+            "LBALBConnectionLogsBucket4BFA48DB",
+            "Arn"
+           ]
+          },
+          "/AWSLogs/",
+          {
+           "Ref": "AWS::AccountId"
+          },
+          "/*"
+         ]
+        ]
+       }
+      },
+      {
+       "Action": "s3:PutObject",
+       "Condition": {
+        "StringEquals": {
+         "s3:x-amz-acl": "bucket-owner-full-control"
+        }
+       },
+       "Effect": "Allow",
+       "Principal": {
+        "Service": "delivery.logs.amazonaws.com"
+       },
+       "Resource": {
+        "Fn::Join": [
+         "",
+         [
+          {
+           "Fn::GetAtt": [
+            "LBALBConnectionLogsBucket4BFA48DB",
+            "Arn"
+           ]
+          },
+          "/AWSLogs/",
+          {
+           "Ref": "AWS::AccountId"
+          },
+          "/*"
+         ]
+        ]
+       }
+      },
+      {
+       "Action": "s3:GetBucketAcl",
+       "Effect": "Allow",
+       "Principal": {
+        "Service": "delivery.logs.amazonaws.com"
+       },
+       "Resource": {
+        "Fn::GetAtt": [
+         "LBALBConnectionLogsBucket4BFA48DB",
+         "Arn"
+        ]
+       }
+      }
+     ],
+     "Version": "2012-10-17"
+    }
+   }
+  },
   "LBListener49E825B4": {
    "Type": "AWS::ElasticLoadBalancingV2::Listener",
    "Properties": {