test_runner: add env option to run function #2558

Job	Run time
Build slim tarball	1m 40s
x86_64-linux: with shared libraries	27m 11s
aarch64-darwin: with shared libraries	31m 19s
x86_64-darwin: with shared libraries	39m 46s
aarch64-linux: with shared libraries	21m 51s
	2h 1m 47s

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