Remove test exclusion on FreeBSD #4279

Job	Run time
test_llvm	3m 57s
rustfmt	14s
test (ubuntu-latest, riscv64gc-unknown-linux-gnu, gcc-riscv64-linux-gnu qemu-user)	4m 23s
bench	7m 0s
test (ubuntu-latest, x86_64-unknown-linux-gnu)	12m 24s
test (macos-15-intel, x86_64-apple-darwin)	22m 11s
test (ubuntu-latest, s390x-unknown-linux-gnu, gcc-s390x-linux-gnu qemu-user)	4m 13s
test (macos-latest, aarch64-apple-darwin)	13m 45s
test (windows-latest, x86_64-pc-windows-gnu)	21m 8s
test (ubuntu-24.04-arm, aarch64-unknown-linux-gnu)	9m 44s
test (windows-latest, x86_64-pc-windows-msvc)	17m 54s
dist (ubuntu-22.04, x86_64-unknown-linux-gnu)	1m 48s
dist (macos-latest, aarch64-apple-darwin)	1m 58s
dist (macos-15-intel, x86_64-apple-darwin)	4m 16s
dist (ubuntu-24.04-arm, aarch64-unknown-linux-gnu)	1m 47s
dist (windows-latest, x86_64-pc-windows-gnu)	2m 33s
dist (windows-latest, x86_64-pc-windows-msvc)	2m 7s
release	0s
	2h 11m 22s

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