Bump rr from 3.1.0 to 3.1.1

Bumps [rr](https://github.com/rr/rr) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/rr/rr/releases)
- [Changelog](https://github.com/rr/rr/blob/master/CHANGES.md)
- [Commits](rr/rr@v3.1.0...v3.1.1)

---
updated-dependencies:
- dependency-name: rr
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -171,7 +171,7 @@ GEM
       psych (>= 4.0.0)
     reline (0.4.2)
       io-console (~> 0.5)
-    rr (3.1.0)
+    rr (3.1.1)
     securerandom (0.4.1)
     stringio (3.1.0)
     thor (1.3.0)