prevent log message truncation #10108

Job	Run time
validate commits	9s
Generate build matrix	7s
python linting	35s
spelling	6s
bookworm - test-install	12m 27s
bookworm - 32 bit	13m 4s
noble - test-install	13m 5s
el9 - test-install	12m 41s
alpine - test-install	12m 25s
fedora40 - test-install	12m 3s
jammy - test-install	12m 52s
focal - py3.8	16m 39s
bookworm - gcc-12,content-s3,distcheck	19m 19s
fedora40 - clang-18	16m 56s
coverage	24m 2s
el8 - ascii	19m 58s
el8 - test-install	13m 18s
el8 - system,coverage	7m 27s
inception	21m 16s
flux-pmix check	13m 13s
flux-pam check	4m 21s
flux-accounting check	4m 42s
macos build only	3m 41s
flux-sched check	7m 10s
Generate docker manifest	0s
	4h 21m 36s

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