Add Void with musl to Docker CI #24

Job	Run time
windows / MSVS 2022 on Windows CMake	8m 53s
android / Generate Godot API	54s
docker / ubuntu-23.04	9m 56s
lint-py-focs / lint-py-focs	24s
snapcraft / snapcraft	8m 55s
docker / fedora-33	9m 20s
ubuntu / ubuntu-22.04 with gcc	9m 4s
docker / debian-oldstable	10m 10s
ubuntu / ubuntu-22.04 with clang	3m 40s
docker / debian-stable	9m 49s
windows-msvc / MSVS 2022 on Windows	8m 52s
docker / debian-sid	10m 11s
docker / debian-sid-i386	10m 11s
code-ql / Analyze (cpp)	9m 8s
docker / manjaro	9m 21s
lint-python / lint	26s
docker / fedora-rawhide	9m 45s
lint-python / tests (3.9)	17s
docker / void-musl	42s
lint-python / tests (3.10)	17s
lint-string-tables / lint-string-tables (3.9)	10s
macos (macos-12) / macos-12	9m 8s
macos (macos-13) / macos-13	7m 23s
android / x86	6m 46s
android / x86_64	3m 34s
android / armeabi-v7a	6m 50s
android / arm64-v8a	6m 52s
	2h 50m 58s

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