Deprecate `\markdownInfo`, `\markdownWarning`, and `\markdownError` #2547

Job	Run time
Style check (Markdown)	1m 17s
Style check (Lua)	55s
Style check (Bash)	3s
Style check (Python)	43s
Type check (Python)	49s
Build Docker image (TL2022-historic)	11m 2s
Build Docker image (latest)	11m 3s
Test Docker image (TL2022-historic)	24s
Test Docker image (latest)	33s
Publish Docker image	0s
Automatically merge pull request	0s
Publish artefacts and create a prerelease	0s
	26m 49s

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