Bump rack from 3.0.11 to 3.1.3

Bumps [rack](https://github.com/rack/rack) from 3.0.11 to 3.1.3.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rack/rack/commits/v3.1.3)

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

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

Gemfile.lock

@@ -76,7 +76,7 @@ GEM
     power_assert (2.0.3)
     public_suffix (5.0.5)
     racc (1.7.3)
-    rack (3.0.11)
+    rack (3.1.3)
     rack-test (2.1.0)
       rack (>= 1.3)
     racksh (1.0.1)