build(deps-dev): bump debug from 1.8.0 to 1.9.0

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]>

Gemfile

@@ -102,5 +102,5 @@ group :development do
   gem 'spork', git: 'https://github.com/sporkrb/spork', ref: '224df49' # '~> 1.0rc'
   gem 'spring'
   gem 'spring-commands-rspec'
-  gem 'debug', '~> 1.8'
+  gem 'debug', '~> 1.9'
 end

Gemfile.lock

@@ -127,9 +127,9 @@ GEM
       rexml
     crass (1.0.6)
     daemons (1.4.1)
-    debug (1.8.0)
-      irb (>= 1.5.0)
-      reline (>= 0.3.1)
+    debug (1.9.0)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
     declarative (0.0.20)
     delayed_job (4.1.9)
       activesupport (>= 3.0, < 6.2)
@@ -271,8 +271,9 @@ GEM
       concurrent-ruby (~> 1.0)
     io-console (0.6.0)
     ipaddress (0.8.3)
-    irb (1.7.4)
-      reline (>= 0.3.6)
+    irb (1.10.1)
+      rdoc
+      reline (>= 0.3.8)
     jaro_winkler (1.5.4)
     json (2.6.3)
     json-diff (0.4.1)
@@ -387,12 +388,14 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rbs (2.8.4)
+    rdoc (6.6.1)
+      psych (>= 4.0.0)
     redis (5.0.7)
       redis-client (>= 0.9.0)
     redis-client (0.15.0)
       connection_pool
     regexp_parser (2.8.1)
-    reline (0.3.8)
+    reline (0.4.1)
       io-console (~> 0.5)
     representable (3.2.0)
       declarative (< 0.1.0)
@@ -567,7 +570,7 @@ DEPENDENCIES
   clockwork
   cloudfront-signer
   codeclimate-test-reporter (>= 1.0.8)
-  debug (~> 1.8)
+  debug (~> 1.9)
   em-http-request (~> 1.1)
   eventmachine (~> 1.2.7)
   fluent-logger