Bumps [github/issue-metrics](https://github.com/github/issue-metrics) from 3.1.1 to 3.18.4.
- [Release notes](https://github.com/github/issue-metrics/releases)
- [Commits](4f29f34d9d...ed6e4b2b46)
---
updated-dependencies:
- dependency-name: github/issue-metrics
dependency-version: 3.18.4
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>