Fix syntax for some CoreML ML Program supported operator entries (mic…

…rosoft#22268)

### Description
<!-- Describe your changes. -->
Fix syntax so usability checker works as expected.

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

tools/ci_build/github/apple/coreml_supported_mlprogram_ops.md

@@ -9,13 +9,13 @@ Keep in sync with doco generated from /docs/execution-providers/CoreML-Execution
 |ai.onnx:Concat||
 |ai.onnx:Conv|Only 1D/2D Conv is supported.<br/>Bias if provided must be constant.|
 |ai.onnx:ConvTranspose|Weight and bias must be constant.<br/>padding_type of SAME_UPPER/SAME_LOWER is not supported.<br/>kernel_shape must have default values.<br/>output_shape is not supported.<br/>output_padding must have default values.|
-|ai.onnx.DepthToSpace|If 'mode' is 'CRD' the input must have a fixed shape.|
+|ai.onnx:DepthToSpace|If 'mode' is 'CRD' the input must have a fixed shape.|
 |ai.onnx:Div||
 |ai.onnx:Gemm|Input B must be constant.|
 |ai.onnx:GlobalAveragePool|Only 2D Pool is supported currently. 3D and 5D support can be added if needed.|
 |ai.onnx:GlobalMaxPool|Only 2D Pool is supported currently. 3D and 5D support can be added if needed.|
 |ai.onnx:GridSample|4D input.<br/>'mode' of 'linear' or 'zeros'.<br/>(mode==linear && padding_mode==reflection && align_corners==0) is not supported.|
-|ai.onnx.LeakyRelu||
+|ai.onnx:LeakyRelu||
 |ai.onnx:MatMul|Only support for transA == 0, alpha == 1.0 and beta == 1.0 is currently implemented.|
 |ai.onnx:MaxPool|Only 2D Pool is supported currently. 3D and 5D support can be added if needed.|
 |ai.onnx:Mul||
@@ -24,7 +24,7 @@ Keep in sync with doco generated from /docs/execution-providers/CoreML-Execution
 |ai.onnx:Relu||
 |ai.onnx:Reshape||
 |ai.onnx:Resize|See [resize_op_builder.cc](https://github.com/microsoft/onnxruntime/blob/main/onnxruntime/core/providers/coreml/builders/impl/resize_op_builder.cc) implementation. There are too many permutations to describe the valid combinations.|
-|ai.onnx.Slice|starts/ends/axes/steps must be constant initializers.|
+|ai.onnx:Slice|starts/ends/axes/steps must be constant initializers.|
 |ai.onnx:Split|If provided, `splits` must be constant.|
 |ai.onnx:Sub||
 |ai.onnx:Sigmoid||