fix: unload core after getting version #992

Job	Run time
Cross Build to aarch64 (ubuntu-latest)	2m 40s
Build and Test (ubuntu-latest)	1m 7s
Build and Test (no default features) (ubuntu-latest, core_installer)	1m 29s
Build and Test (macos-12)	1m 59s
Build and Test (no default features) (ubuntu-latest, git2)	1m 31s
Build and Test (macos-14)	57s
Build and Test (maa-sys, static) (ubuntu-latest)	17s
Build and Test (no default features) (macos-14, core_installer)	1m 26s
Build and Test (maa-sys, static) (macos-12)	35s
Build and Test (windows-latest)	3m 42s
Build and Test (no default features) (macos-14, git2)	1m 45s
Build and Test (maa-sys, static) (macos-14)	19s
Build and Test (no default features) (windows-latest, core_installer)	3m 8s
Build and Test (maa-sys, static) (windows-latest)	1m 25s
Build and Test (no default features) (windows-latest, git2)	3m 20s
Coverage	0s
	25m 40s

Provide feedback