Bump version to 3.5.4-rc #89

Job	Run time
📊 Static / Static Checks (clang-format, black format, file format, documentation checks)	2m 34s
🌐 JavaScript / Template (target=release, tools=no)	3m 54s
🤖 Android / Template (target=release, tools=no)	5m 31s
🐧 Linux / Editor w/ Mono (target=release_debug, tools=yes)	11m 16s
🐧 Linux / Editor and sanitizers (target=debug, tools=yes, use_asan=yes, use_ubsan=yes, linker=gold)	9m 29s
🍏 iOS / Template (target=release, tools=no)	2m 40s
🍎 macOS / Editor (target=release_debug, tools=yes)	4m 54s
🐧 Linux / Template w/ Mono (target=release, tools=no)	3m 58s
☁ Server / Linux Headless w/ Mono (target=release_debug, tools=yes)	5m 44s
🍎 macOS / Template (target=release, tools=no)	2m 37s
☁ Server / Linux Server w/ Mono (target=release, tools=no)	3m 27s
🏁 Windows / Editor (target=release_debug, tools=yes)	5m 49s
🏁 Windows / Template (target=release, tools=no)	4m 18s
	1h 6m 11s

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