fix macos portability issues (second batch) #9929

Job	Run time
validate commits	18s
validate commits	18s
python linting	27s
python linting	27s
Generate build matrix	6s
Generate build matrix	6s
spelling	8s
spelling	8s
bookworm - test-install	12m 0s
bookworm - test-install	12m 0s
bookworm - 32 bit	30m 33s
bookworm - 32 bit	12m 51s
noble - test-install	12m 43s
noble - test-install	12m 43s
el9 - test-install	12m 43s
el9 - test-install	12m 43s
alpine - test-install	12m 2s
alpine - test-install	12m 2s
fedora40 - test-install	12m 24s
fedora40 - test-install	12m 24s
jammy - test-install	11m 45s
jammy - test-install	11m 45s
focal - py3.8	16m 57s
focal - py3.8	16m 57s
bookworm - gcc-12,content-s3,distcheck	19m 34s
bookworm - gcc-12,content-s3,distcheck	19m 34s
fedora40 - clang-18	16m 44s
fedora40 - clang-18	16m 44s
coverage	24m 9s
coverage	24m 9s
el8 - ascii	18m 58s
el8 - ascii	18m 58s
el8 - test-install	13m 44s
el8 - test-install	13m 44s
el8 - system,coverage	7m 52s
el8 - system,coverage	7m 52s
inception	22m 27s
inception	22m 27s
flux-pmix check	13m 22s
flux-pmix check	13m 22s
flux-accounting check	4m 47s
flux-accounting check	4m 47s
flux-pam check	4m 17s
flux-pam check	4m 17s
flux-sched check	6m 51s
flux-sched check	6m 51s
Generate docker manifest	0s
Generate docker manifest	1s
	8h 52m 1s

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