Add AWS boto3 error code exception function is_boto3_error_code (#41202)

* Add aws/core.py function to check for specific AWS error codes

* Use sys.exc_info to get exception object if it isn't passed in

* Allow catching exceptions with is_boto3_error_code

* Replace from_code with is_boto3_error_code

* Return a type that will never be raised to support stricter type comparisons in Python 3+

* Use is_boto3_error_code in aws_eks_cluster

* Add duplicate-except to ignores when using is_boto3_error_code

* Add is_boto3_error_code to module development guideline docs

changelogs/fragments/aws_core_is_boto3_error_code.yml

@@ -0,0 +1,4 @@
+---
+minor_changes:
+  - Add `is_boto3_error_code` function to `module_utils/aws/core.py` to make it
+    easier for modules to handle special AWS error codes.