gh-37785: `sage-logger`: Suppress "No such file or directory" messages
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A minor follow-up after #37391:
Seen for example in
https://github.com/sagemath/sage/actions/runs/8626379356/job/23644513913
?pr=37570#step:11:3227:
```
#24 4091.8 /sage/build/bin/sage-logger: line 66: /usr/bin/time: No such
file or directory
#24 4091.8 [sagemath_doc_html-none] installing. Log file:
/sage/logs/pkgs/sagemath_doc_html-none.log
#24 5807.5 cat: /sage/logs/pkgs/sagemath_doc_html-none.time: No such
file or directory
```
We suppress these (harmless) messages which show up when `/usr/bin/time`
is not available.
### :memo: Checklist
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### :hourglass: Dependencies
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URL: https://github.com/sagemath/sage/pull/37785
Reported by: Matthias Köppe
Reviewer(s): David Ayotte, Gonzalo Tornaría, Matthias Köppe
