Add Void with musl to Docker CI #23

Job	Run time
android / Generate Godot API	1m 1s
ubuntu / ubuntu-22.04 with gcc	5m 13s
ubuntu / ubuntu-22.04 with clang	5m 11s
code-ql / Analyze (cpp)	5m 12s
docker / ubuntu-23.04	5m 51s
docker / fedora-33	5m 51s
lint-py-focs / lint-py-focs	25s
docker / debian-oldstable	6m 24s
lint-python / tests (3.9)	14s
docker / debian-stable	6m 22s
lint-python / lint	23s
lint-python / tests (3.10)	14s
docker / debian-sid	6m 21s
lint-string-tables / lint-string-tables (3.9)	9s
docker / debian-sid-i386	6m 42s
docker / manjaro	6m 17s
snapcraft / snapcraft	3m 41s
windows / MSVS 2022 on Windows CMake	4m 25s
docker / fedora-rawhide	6m 21s
windows-msvc / MSVS 2022 on Windows	5m 6s
docker / void-musl	16s
macos (macos-13) / macos-13	3m 53s
macos (macos-12) / macos-12	4m 53s
android / x86	3m 42s
android / x86_64	3m 38s
android / armeabi-v7a	3m 49s
android / arm64-v8a	3m 40s
	1h 45m 14s

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