fix: add `freebsd` flag to nonCGO build (#947) #1011

Job	Run time
call-lint / golangci	1m 4s
call-styles-check / styles-check	14s
call-swagger-check / swagger-check	30s
call-test / test-bsd (openbsd, x86-64, 7.5)	4m 27s
call-test / Go unit tests (ubuntu-latest)	2m 44s
call-test / Go unit tests (windows-latest)	3m 16s
call-test / Go unit tests (macos-latest)	1m 23s
call-gorelease / goreleaser	3m 6s
call-buildx	0s
	16m 44s

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