This PR fixes a bug in the CI version validation where `grep -oE
'[0-9]+'` matches
multiple numbers from the comment on the same line:
```
set(LEAN_VERSION_IS_RELEASE 1) # This number is 1 in the release revision, and 0 otherwise.
```
The grep extracts `1`, `1`, and `0`, causing the comparison to fail.
🤖 Prepared with Claude Code
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| .. | ||
| actionlint.yml | ||
| awaiting-manual.yml | ||
| awaiting-mathlib.yml | ||
| backport.yml | ||
| build-template.yml | ||
| check-prelude.yml | ||
| check-stage0.yml | ||
| check-stdlib-flags.yml | ||
| ci.yml | ||
| copyright-header.yml | ||
| grove.yml | ||
| jira.yml | ||
| labels-from-comments.yml | ||
| pr-body.yml | ||
| pr-release.yml | ||
| pr-title.yml | ||
| restart-on-label.yml | ||
| stale.yml | ||
| update-stage0.yml | ||