ci: Update BSD images (#210) #804

Job	Run time
test (ubuntu-latest, nightly)	39s
test (ubuntu-latest, beta)	40s
clippy	23s
test (ubuntu-latest, stable)	39s
cross (ubuntu-latest)	1m 31s
fmt	11s
test (windows-latest, nightly)	1m 12s
cross (macos-latest)	1m 13s
test (windows-latest, beta)	1m 12s
test (windows-latest, stable)	1m 16s
msrv (ubuntu-latest)	41s
security_audit	8s
test (macos-latest, nightly)	47s
windows_gnu (nightly, x86_64-pc-windows-gnu)	1m 40s
msrv (windows-latest)	1m 16s
test (macos-latest, beta)	42s
test (macos-latest, stable)	56s
	15m 6s

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