Test

Avoid weird mutex. #680

Job	Run time
test (macos-latest)	2m 13s
test (ubuntu-latest)	2m 55s
test (windows-latest)	5m 32s
test-qemu	7m 55s
test-macintel	50s
test-bsd (freebsd, 14.2, -test.v)	1m 54s
test-vm (dragonfly, vmactions/dragonflybsd-vm@v1, -test.v)	3m 20s
test-bsd (netbsd, 10.0, -test.v)	2m 11s
test-vm (illumos, vmactions/omnios-vm@v1, -test.v)	3m 49s
test-wasip1	3m 39s
test-vm (solaris, vmactions/solaris-vm@v1, -tags sqlite3_dotlk, -test.v)	3m 52s
test-bsd (freebsd, arm64, 14.2, -test.v -test.short)	2m 59s
test-bsd (netbsd, arm64, 10.0, -test.v -test.short)	3m 20s
test-bsd (openbsd, 7.6, -test.v -test.short)	1m 40s
	46m 9s

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