Fix irb and rdoc warnings

After bumping bundler's version, running a faker
console showed these warnings:

```
faker/Rakefile:12: warning: irb was loaded from
the standard library, but will no longer be part
of the default gems starting from Ruby 3.5.0.
You can add irb to your Gemfile or gemspec to silence this warning.
irb/input-method.rb:278: warning: rdoc was loaded
from the standard library, but will no longer be
part of the default gems starting from Ruby 3.5.0.
You can add rdoc to your Gemfile or gemspec to
silence this warning.
```

Author: stefannibrasil

Gemfile

@@ -6,9 +6,11 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'benchmark'
+gem 'irb'
 gem 'minitest', '5.26.1'
 gem 'pry', '0.15.2'
 gem 'rake', '13.3.1'
+gem 'rdoc'
 gem 'rubocop', '1.81.7'
 gem 'rubocop-minitest', '0.38.2'
 gem 'rubocop-rake', '0.7.1'

Gemfile.lock

@@ -11,9 +11,16 @@ GEM
     benchmark (0.5.0)
     coderay (1.1.3)
     concurrent-ruby (1.3.5)
+    date (3.5.1)
     docile (1.4.1)
+    erb (6.0.1)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
+    io-console (0.8.2)
+    irb (1.16.0)
+      pp (>= 0.6.0)
+      rdoc (>= 4.0.0)
+      reline (>= 0.4.2)
     json (2.16.0)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
@@ -24,14 +31,26 @@ GEM
       ast (~> 2.4.1)
       racc
     power_assert (3.0.1)
+    pp (0.6.3)
+      prettyprint
+    prettyprint (0.2.0)
     prism (1.6.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
+    psych (5.3.1)
+      date
+      stringio
     racc (1.8.1)
     rainbow (3.1.1)
     rake (13.3.1)
+    rdoc (7.0.3)
+      erb
+      psych (>= 4.0.0)
+      tsort
     regexp_parser (2.11.3)
+    reline (0.6.3)
+      io-console (~> 0.5)
     rubocop (1.81.7)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
@@ -60,9 +79,11 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.13.2)
     simplecov_json_formatter (0.1.4)
+    stringio (3.2.0)
     test-unit (3.7.1)
       power_assert
     timecop (0.9.10)
+    tsort (0.2.0)
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.1.0)
@@ -75,9 +96,11 @@ PLATFORMS
 DEPENDENCIES
   benchmark
   faker!
+  irb
   minitest (= 5.26.1)
   pry (= 0.15.2)
   rake (= 13.3.1)
+  rdoc
   rubocop (= 1.81.7)
   rubocop-minitest (= 0.38.2)
   rubocop-rake (= 0.7.1)