Tests for Apptainer container support

Revert "hold off on deprecating old XORG__SOURCE and GNU_SOURCE tem… #231

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Run time

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Job	Run time
build (3.7, 1.0.0)	7m 37s
build (3.7, 1.3.6)	7m 24s
build (3.7, 1.1.7)	8m 2s
	23m 3s