CodeQL Unit Testing #4703

Job	Run time
Prepare CodeQL unit test matrix	7s
Run unit tests (c, 2.21.4, codeql-cli/v2.21.4, codeql-bundle-v2.21.4, ubuntu-latest-xl, codeql-cl...	43m 7s
Run unit tests (cpp, 2.21.4, codeql-cli/v2.21.4, codeql-bundle-v2.21.4, ubuntu-latest-xl, codeql-...	2h 8m 29s
Validate test results	5s
	2h 51m 48s

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