CI: Add FreeBSD build tests for staged commits (#1948) #162

Job	Run time
source-maintenance-tests	2m 51s
build-tests(ubuntu-22.04,gcc,default)	5m 53s
CodeQL-tests	23m 44s
functionality-tests	16m 58s
build-tests(ubuntu-22.04,gcc,minimal)	4m 16s
build-tests(ubuntu-22.04,gcc,maximus)	6m 3s
build-tests(ubuntu-22.04,clang,default)	6m 32s
build-tests(ubuntu-22.04,clang,minimal)	5m 13s
build-tests(ubuntu-22.04,clang,maximus)	7m 0s
	1h 18m 30s

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