Bump version to 3.5.3-stable #331

Job	Run time
📊 Static / Static Checks (clang-format, black format, file format, documentation checks)	3m 22s
🌐 JavaScript / Template (target=release, tools=no)	14m 18s
🐧 Linux / Editor w/ Mono (target=release_debug, tools=yes)	56m 10s
🐧 Linux / Editor and sanitizers (target=debug, tools=yes, use_asan=yes, use_ubsan=yes, linker=gold)	44m 26s
🤖 Android / Template (target=release, tools=no)	26m 20s
🐧 Linux / Template w/ Mono (target=release, tools=no)	24m 39s
🍏 iOS / Template (target=release, tools=no)	13m 40s
🍎 macOS / Editor (target=release_debug, tools=yes)	23m 28s
☁ Server / Linux Headless w/ Mono (target=release_debug, tools=yes)	31m 24s
🍎 macOS / Template (target=release, tools=no)	13m 13s
☁ Server / Linux Server w/ Mono (target=release, tools=no)	18m 42s
🏁 Windows / Editor (target=release_debug, tools=yes)	26m 11s
🏁 Windows / Template (target=release, tools=no)	19m 52s
	5h 15m 45s

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