Bump plek from 4.0.0 to 4.1.0

Bumps [plek](https://github.com/alphagov/plek) from 4.0.0 to 4.1.0.
- [Release notes](https://github.com/alphagov/plek/releases)
- [Changelog](https://github.com/alphagov/plek/blob/main/CHANGELOG.md)
- [Commits](alphagov/plek@v4.0.0...v4.1.0)

---
updated-dependencies:
- dependency-name: plek
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -225,7 +225,7 @@ GEM
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
-    plek (4.0.0)
+    plek (4.1.0)
     prometheus_exporter (2.0.3)
       webrick
     pry (0.14.1)