Bump debug from 1.8.0 to 1.9.0 in /graph-sample

Bumps [debug](https://github.com/ruby/debug) from 1.8.0 to 1.9.0.
- [Release notes](https://github.com/ruby/debug/releases)
- [Commits](ruby/debug@v1.8.0...v1.9.0)

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

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

Author: dependabot[bot]

graph-sample/Gemfile.lock

@@ -104,9 +104,9 @@ GEM
     connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
-    debug (1.8.0)
-      irb (>= 1.5.0)
-      reline (>= 0.3.1)
+    debug (1.9.0)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
     drb (2.2.0)
       ruby2_keywords
     erubi (1.12.0)
@@ -126,8 +126,8 @@ GEM
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
-    io-console (0.6.0)
-    irb (1.9.0)
+    io-console (0.7.1)
+    irb (1.10.1)
       rdoc
       reline (>= 0.3.8)
     jbuilder (2.11.5)
@@ -225,10 +225,10 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.1.0)
-    rdoc (6.6.0)
+    rdoc (6.6.2)
       psych (>= 4.0.0)
     regexp_parser (2.8.1)
-    reline (0.4.0)
+    reline (0.4.1)
       io-console (~> 0.5)
     rexml (3.2.6)
     ruby2_keywords (0.0.5)
@@ -250,7 +250,7 @@ GEM
     sqlite3 (1.6.9-x86_64-linux)
     stimulus-rails (1.3.0)
       railties (>= 6.0.0)
-    stringio (3.0.9)
+    stringio (3.1.0)
     thor (1.3.0)
     timeout (0.4.1)
     turbo-rails (1.5.0)