CodeQL Unit Testing #3451

Job	Run time
Prepare CodeQL unit test matrix	6s
Run unit tests (cpp, 2.19.4, codeql-cli/v2.19.4, codeql-bundle-v2.19.4, ubuntu-latest-xl, codeql-...	1h 30m 28s
Run unit tests (c, 2.19.4, codeql-cli/v2.19.4, codeql-bundle-v2.19.4, ubuntu-latest-xl, codeql-cl...	33m 50s
Validate test results	6s
	2h 4m 30s

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