builder: prevent coroutines_runtime_test on FreeBSD #11724

Job	Run time
v-up-works-nix (macos-15-intel, v_macos_x86_64.zip)	7m 11s
v-up-works-nix (macos-latest, v_macos_arm64.zip)	3m 32s
v-up-works-nix (ubuntu-latest, v_linux.zip)	3m 16s
	13m 59s

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