**What this PR does / why we need it**:
**Which issue(s) this PR fixes**:
Fixes #9009
**Special notes for your reviewer**:
Dashboard from the helm chart had a `=` instead of a `=~` operator for
the level filter
**Checklist**
- [x] Reviewed the
[`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md)
guide (**required**)
- [ ] Documentation added
- [ ] Tests updated
- [x] `CHANGELOG.md` updated
- [ ] Changes that require user attention or interaction to upgrade are
documented in `docs/sources/upgrading/_index.md`
---------
Co-authored-by: Michel Hollands <[email protected]>
