Documentation: Add support for deprecated/experimental messages #22679

Job	Run time
📊 Static checks / Code style, file formatting, and docs	55s
🤖 Android / Template (target=template_release)	29m 8s
🍎 macOS / Editor (target=editor, tests=yes)	25m 16s
🍎 macOS / Template (target=template_release)	26m 50s
🐧 Linux / Editor w/ Mono (target=editor)	14m 19s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	23m 19s
🍏 iOS / Template (target=template_release)	22m 4s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	12m 43s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	8m 8s
🏁 Windows / Editor (target=editor, tests=yes)	41m 38s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	13m 21s
🌐 Web / Template w/o threads (target=template_release, threads=no)	8m 12s
🏁 Windows / Template (target=template_release)	29m 46s
🐧 Linux / Template w/ Mono (target=template_release)	6m 17s
🐧 Linux / Minimal template (target=template_release, everything disabled)	14m 42s
🪲 Godot CPP / Build and test Godot CPP	6m 55s
	4h 43m 33s

Provide feedback