Build(deps): Bump request_store from 1.5.0 to 1.5.1 (#15641)

Bumps [request_store](https://github.com/steveklabnik/request_store) from 1.5.0 to 1.5.1.
- [Release notes](https://github.com/steveklabnik/request_store/releases)
- [Commits](https://github.com/steveklabnik/request_store/compare/v1.5.0...v1.5.1)

---
updated-dependencies:
- dependency-name: request_store
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -355,7 +355,7 @@ GEM
     redis-namespace (1.8.1)
       redis (>= 3.0.4)
     regexp_parser (2.2.0)
-    request_store (1.5.0)
+    request_store (1.5.1)
       rack (>= 1.4)
     rexml (3.2.5)
     rinku (2.0.6)