Bump version to 4.2.2-rc #2

Job	Run time
📊 Static checks / Code style, file formatting, and docs	2m 22s
🍎 macOS / Editor (target=editor, tests=yes)	23m 13s
🍎 macOS / Template (target=template_release)	14m 49s
🐧 Linux / Editor w/ Mono (target=editor)	33m 31s
🍏 iOS / Template (target=template_release)	14m 27s
🐧 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)	35m 41s
🤖 Android / Template (target=template_release)	27m 23s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	29m 11s
🌐 Web / Template (target=template_release)	18m 13s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	25m 22s
🐧 Linux / Template w/ Mono (target=template_release)	22m 46s
🏁 Windows / Editor (target=editor, tests=yes)	40m 11s
🐧 Linux / Minimal template (target=template_release, everything disabled)	13m 2s
🏁 Windows / Template (target=template_release)	28m 40s
🪲 Godot CPP / Build and test Godot CPP	6m 41s
	5h 35m 32s

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