Bump ruby/setup-ruby from 1 to 1.300.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1 to 1.300.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@v1...v1.300.0)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.300.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/gem_push.yml

@@ -20,7 +20,7 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v6
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.300.0
         with:
           ruby-version: ruby
           bundler-cache: true

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.300.0
         with:
           ruby-version: ruby
           bundler-cache: true

.github/workflows/mutant.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.300.0
         with:
           ruby-version: ruby
           bundler-cache: true

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
 
       - run: rm Gemfile.lock
 
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.300.0
         with:
           ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true