Add option to skip region validation

[carpenterm]

Description of your changes

This PR adds the skip_region_validation field to the AWS ProviderConfig as per https://registry.terraform.io/providers/hashicorp/aws/2.47.0/docs#skip_region_validation

Fixes #812: Support skipping region validation

I have:

• Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

Built custom image using the following:

make submodules
export DOCKER_REGISTRY=myregistry/myrepo
export BUILD_REGISTRY=myregistry/myrepo
export XPKG_REG_ORGS=myregistry/myrepo
export REGISTRY_ORGS=myregistry/myrepo
make build.all publish BRANCH_NAME=main SUBPACKAGES="s3 config"

Created aws family Provider and s3 Provider using newly built test images:

NAME                  INSTALLED   HEALTHY   PACKAGE                                            AGE
provider-aws-family   True        True      myregistry/myrepo/provider-family-aws:v0.37.0      53m
provider-aws-s3       True        True      myregistry/myrepo/provider-aws-s3:v0.37.0-custom.4 53m

Deployed Minio object store with a custom region and configured ProviderConfig to point to it:

apiVersion: aws.upbound.io/v1beta1
kind: ProviderConfig
metadata:
  name: minio
spec:
  credentials:
    secretRef:
      key: config
      name: minio-credentials
      namespace: mynamespace
    source: Secret
  endpoint:
    hostnameImmutable: true
    services:
    - s3
    - sts
    signingRegion: my-region
    source: Custom
    url:
      static: http://minio.mynamespace.svc.cluster.local:9000
      type: Static
  s3_use_path_style: true
  skip_credentials_validation: true
  skip_metadata_api_check: true
  skip_requesting_account_id: true
  skip_region_validation: true

Created an S3 bucket passing the custom region:

apiVersion: s3.aws.upbound.io/v1beta1
kind: Bucket
metadata:
  name: my-bucket
spec:
  forProvider:
    region: my-region

Observe that bucket is created successfully and there is no Error: Invalid AWS Region error as was the case prior to this PR:

NAME                 READY   SYNCED   EXTERNAL-NAME        AGE
my-bucket            True    True     my-bucket            5m

[turkenf]

/test-examples="examples/s3/bucket.yaml"

[Syndlex]

Any reason this is not merged? I kinda need this.

[jeanduplessis]

@Syndlex next release is coming out on Thursday next week.

[sergenyalcin]

Thanks @carpenterm LGTM!

[turkenf]

Thank you @carpenterm, LGTM.