ci: enable x86 tests #11

Job	Run time
Compile sysdeps (dripos)	1m 29s
Compile sysdeps (lemon)	2m 4s
Compile sysdeps (aero)	1m 52s
Compile sysdeps (ironclad)	1m 43s
Compile sysdeps (lyre)	1m 29s
Compile sysdeps (keyronex)	1m 46s
Build mlibc (x86_64, mlibc)	15m 29s
Build mlibc (x86_64, mlibc-static)	3m 18s
Build mlibc (x86_64, mlibc-shared)	2m 58s
Build mlibc (x86_64, mlibc-ansi-only)	2m 58s
Build mlibc (x86_64, mlibc-headers-only)	1m 44s
Build mlibc (riscv64, mlibc)	3m 46s
Build mlibc (riscv64, mlibc-static)	6m 30s
Build mlibc (riscv64, mlibc-shared)	2m 54s
Build mlibc (riscv64, mlibc-ansi-only)	3m 23s
Build mlibc (riscv64, mlibc-headers-only)	2m 8s
Build mlibc (aarch64, mlibc)	4m 36s
Build mlibc (aarch64, mlibc-static)	3m 20s
Build mlibc (aarch64, mlibc-shared)	4m 5s
Build mlibc (aarch64, mlibc-ansi-only)	3m 3s
Build mlibc (aarch64, mlibc-headers-only)	1m 35s
Build mlibc (x86, mlibc)	4m 18s
Build mlibc (x86, mlibc-static)	4m 13s
Build mlibc (x86, mlibc-shared)	3m 13s
Build mlibc (x86, mlibc-ansi-only)	3m 6s
Build mlibc (x86, mlibc-headers-only)	1m 37s
	1h 28m 37s

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