Test

Improve Wal locking on BSD #651

Job	Run time
test (macos-latest)	2m 11s
test (ubuntu-latest)	1m 37s
test (windows-latest)	5m 53s
test-bsd (freebsd, 14.2, -test.v)	1m 38s
test-vm (dragonfly, vmactions/dragonflybsd-vm@v1, -test.v)	3m 28s
test-bsd (netbsd, 10.0, -test.v)	2m 2s
test-qemu	8m 7s
test-macintel	1m 11s
test-vm (illumos, vmactions/omnios-vm@v1, -test.v)	2m 50s
test-bsd (openbsd, 7.6, -test.v -test.short)	2m 15s
test-vm (solaris, vmactions/solaris-vm@v1, -tags sqlite3_dotlk, -test.v)	3m 47s
	34m 59s

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