chore(deps): bump kr8s in /warehouse/metrics-service

Bumps [kr8s](https://github.com/kr8s-org/kr8s) from 0.20.9 to 0.20.12.
- [Release notes](https://github.com/kr8s-org/kr8s/releases)
- [Changelog](https://github.com/kr8s-org/kr8s/blob/main/docs/history.md)
- [Commits](kr8s-org/kr8s@v0.20.9...v0.20.12)

---
updated-dependencies:
- dependency-name: kr8s
  dependency-version: 0.20.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

warehouse/metrics-service/pyproject.toml

@@ -68,7 +68,7 @@ dependencies = [
     "colorlog<7.0.0,>=6.9.0",
     "pyarrow-stubs>=17.16,<21.0",
     "gcloud-aio-storage<10.0.0,>=9.3.0",
-    "kr8s==0.20.9",
+    "kr8s==0.20.13",
 ]
 
 [tool.uv.sources]