ci: consolidate misc workflows #4113

Job	Run time
Compile sysdeps (dripos)	2m 17s
Build mlibc (x86_64, mlibc, gcc)	4m 1s
Build mlibc (x86_64, mlibc-static, gcc)	3m 31s
Build mlibc (x86_64, mlibc-shared, gcc)	3m 6s
Compile sysdeps (lemon)	2m 18s
Compile sysdeps (aero)	2m 17s
Build mlibc (x86_64, mlibc-ansi-only, gcc)	3m 24s
Compile sysdeps (ironclad)	2m 17s
Build mlibc (x86_64, mlibc-headers-only, gcc)	2m 8s
Build mlibc (riscv64, mlibc, gcc)	3m 40s
Compile sysdeps (lyre)	2m 15s
Build mlibc (riscv64, mlibc-static, gcc)	4m 30s
Compile sysdeps (keyronex)	2m 20s
Build mlibc (riscv64, mlibc-shared, gcc)	3m 11s
Compile sysdeps (managarm)	2m 43s
Build mlibc (riscv64, mlibc-ansi-only, gcc)	3m 2s
Compile sysdeps (vinix)	2m 19s
Compile sysdeps (astral)	2m 17s
Build mlibc (riscv64, mlibc-headers-only, gcc)	2m 0s
Build mlibc (aarch64, mlibc, gcc)	4m 3s
Build mlibc (aarch64, mlibc-static, gcc)	3m 25s
Build mlibc (aarch64, mlibc-shared, gcc)	3m 12s
Build mlibc (aarch64, mlibc-ansi-only, gcc)	3m 6s
Build mlibc (aarch64, mlibc-headers-only, gcc)	1m 58s
Build mlibc (x86, mlibc, gcc)	10m 35s
Build mlibc (x86, mlibc-static, gcc)	3m 10s
Build mlibc (x86, mlibc-shared, gcc)	3m 9s
Build mlibc (x86, mlibc-ansi-only, gcc)	3m 0s
Build mlibc (x86, mlibc-headers-only, gcc)	1m 55s
Build mlibc (m68k, mlibc, gcc)	3m 27s
Build mlibc (m68k, mlibc-static, gcc)	3m 0s
Build mlibc (m68k, mlibc-shared, gcc)	3m 3s
Build mlibc (m68k, mlibc-ansi-only, gcc)	2m 43s
Build mlibc (m68k, mlibc-headers-only, gcc)	2m 2s
Build mlibc (x86_64, mlibc, clang)	3m 32s
	1h 48m 56s

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