Add trigraph rule RULE-5-0-1 #4040

Job	Run time
Prepare CodeQL unit test matrix	4s
Run unit tests (cpp, 2.21.4, codeql-cli/v2.21.4, codeql-bundle-v2.21.4, ubuntu-latest-xl, codeql-...	1h 44m 10s
Run unit tests (c, 2.21.4, codeql-cli/v2.21.4, codeql-bundle-v2.21.4, ubuntu-latest-xl, codeql-cl...	35m 21s
Validate test results	14s
	2h 19m 49s

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