Merge pull request #949 from jketema/dataflow-new #3783

Job	Run time
Prepare CodeQL unit test matrix	5s
Run unit tests (cpp, 2.20.7, codeql-cli/v2.20.7, codeql-bundle-v2.20.7, ubuntu-latest-xl, codeql-...	1h 34m 45s
Run unit tests (c, 2.20.7, codeql-cli/v2.20.7, codeql-bundle-v2.20.7, ubuntu-latest-xl, codeql-cl...	29m 57s
Validate test results	6s
	2h 4m 53s

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