update checkout action to v4 (#522)

Author: faisal

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
           - ruby-version: 'jruby-9.4'
             experimental: true
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
@@ -70,7 +70,7 @@ jobs:
           - ruby-version: 'jruby-9.4'
             experimental: true
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
@@ -100,7 +100,7 @@ jobs:
           - ruby-version: 'jruby-9.4'
             experimental: true
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
@@ -131,7 +131,7 @@ jobs:
             experimental: true
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
@@ -146,7 +146,7 @@ jobs:
     if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:

CHANGELOG.md

@@ -1,5 +1,7 @@
 # main [(unreleased)](https://github.com/whitesmith/rubycritic/compare/v4.9.2...main)
 
+* [CHANGE] Update CI checkout action to v4 (by [@faisal][])
+
 # v4.9.2 / 2025-04-08 [(commits)](https://github.com/whitesmith/rubycritic/compare/v4.9.1...v4.9.2)
 
 * [CHANGE] Adds development dependency for gems removed from standard library in Ruby 3.5 -- ostruct, irb, rdoc (by [@faisal][])