Bump debug from 1.9.0 to 1.9.1 (#12)

Bumps [debug](https://github.com/ruby/debug) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/ruby/debug/releases)
- [Commits](ruby/debug@v1.9.0...v1.9.1)

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

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

Gemfile.lock

@@ -111,7 +111,7 @@ GEM
     connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
-    debug (1.9.0)
+    debug (1.9.1)
       irb (~> 1.10)
       reline (>= 0.3.8)
     diff-lcs (1.5.0)
@@ -151,7 +151,7 @@ GEM
       activesupport (>= 3.0)
       nokogiri (>= 1.6)
     io-console (0.7.2)
-    irb (1.11.1)
+    irb (1.11.2)
       rdoc
       reline (>= 0.4.2)
     jbuilder (2.11.5)
@@ -269,7 +269,7 @@ GEM
     rdoc (6.6.2)
       psych (>= 4.0.0)
     regexp_parser (2.9.0)
-    reline (0.4.2)
+    reline (0.4.3)
       io-console (~> 0.5)
     request_store (1.5.1)
       rack (>= 1.4)