ResourceGroupTagging: Fix filtering for lambda functions with "lambda:function"

[kirberich]

The resource group tagging api get_resources method doesn't allow for filtering for lambda functions using a lambda:function resource type filter, it's only checking for lambda - this adds support for that, in the same way it's done for other kinds of resources

First commit has the failing test:

        resp = rtapi.get_resources(ResourceTypeFilters=["lambda:function"])
>       assert_response(resp, [circle_arn, rectangle_arn])

tests/test_resourcegroupstaggingapi/test_resourcegroupstaggingapi.py:708: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

response = {'ResourceTagMappingList': [], 'ResponseMetadata': {'HTTPHeaders': {'date': 'Mon, 13 May 2024 11:09:28 GMT', 'server':...Hw8'}, 'HTTPStatusCode': 200, 'RequestId': 'YRtMzouuFVfnMx5K4jhUXR0Of8m1k7vdSQHKA1JcQSdRgKLvQHw8', 'RetryAttempts': 0}}
expected_arns = ['arn:aws:lambda:us-west-2:123456789012:function:lambda-tag-value-1', 'arn:aws:lambda:us-west-2:123456789012:function:lambda-tag-value-2']

    def assert_response(response, expected_arns):
        results = response.get("ResourceTagMappingList", [])
        resultArns = []
        for item in results:
            resultArns.append(item["ResourceARN"])
        for arn in resultArns:
            assert arn in expected_arns
        for arn in expected_arns:
>           assert arn in resultArns
E           AssertionError: assert 'arn:aws:lambda:us-west-2:123456789012:function:lambda-tag-value-1' in []

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.32%. Comparing base (de19a6c) to head (ce25d38).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7690   +/-   ##
=======================================
  Coverage   94.32%   94.32%           
=======================================
  Files        1087     1087           
  Lines       92692    92692           
=======================================
+ Hits        87434    87435    +1     
+ Misses       5258     5257    -1     

Flag	Coverage Δ
servertests	29.41% <100.00%> (ø)
unittests	94.29% <100.00%> (+<0.01%)	⬆️

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[bblommers]

LGTM - thank you for fixing this @kirberich!

[github-actions]

This is now part of moto >= 5.0.8.dev6