tense of errors

[jcsp]

I forgot a commit when merging #8177

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.
• Do we need to implement analytics? if so did you add the relevant metrics to the dashboard?
• If this PR requires public announcement, mark it with /release-notes label and add several sentences in this section.

Checklist before merging

• Do not forget to reformat commit message to not include the above checklist

[problame]

I think you had added one thiserror somewhere that was using present progressive

[github-actions]

3000 tests run: 2885 passed, 0 failed, 115 skipped (full report)

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Code coverage* (full report)

• functions: 32.7% (6936 of 21213 functions)
• lines: 50.0% (54330 of 108576 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
cf285d6 at 2024-07-02T15:57:58.828Z :recycle:}