Bump psych to 5.1.1.1

This commit addresses action_controller_gem.rb failure by updating psych as follows.
`$ bundle update psych --conservative`

Refer to https://buildkite.com/rails/rails/builds/100884#018b3a84-f1c5-4461-839c-5cfbe26ee001/1092-1125

- Without this commit
```
$ ruby -v
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]
$ cd guides/bug_report_templates
$ ruby action_controller_gem.rb
Fetching gem metadata from https://rubygems.org/...........
... snip ...
Using rails 7.1.1
/home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/runtime.rb:308:in `check_for_activated_spec!': You have already activated psych 5.1.0, but your Gemfile requires psych 5.1.1.1. Prepending `bundle exec` to your command may solve this. (Gem::LoadError)
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/runtime.rb:25:in `block in setup'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/spec_set.rb:155:in `each'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/spec_set.rb:155:in `each'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/runtime.rb:24:in `map'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/runtime.rb:24:in `setup'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/inline.rb:66:in `block in gemfile'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/settings.rb:131:in `temporary'
	from /home/yahonda/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.3.22/lib/bundler/inline.rb:50:in `gemfile'
	from action_controller_gem.rb:5:in `<main>'
$
```

Gemfile.lock

@@ -376,7 +376,7 @@ GEM
       activesupport (>= 7.0.0)
       rack
       railties (>= 7.0.0)
-    psych (5.1.0)
+    psych (5.1.1.1)
       stringio
     public_suffix (5.0.1)
     puma (6.3.0)