Use ruby version 4.0.6 (#39811)

.github/ISSUE_TEMPLATE/2.server_bug_report.yml

@@ -59,7 +59,7 @@ body:
         Any additional technical details you may have, like logs or error traces
       value: |
         If this is happening on your own Mastodon server, please fill out those:
-        - Ruby version: (from `ruby --version`, eg. v4.0.5)
+        - Ruby version: (from `ruby --version`, eg. v4.0.6)
         - Node.js version: (from `node --version`, eg. v22.16.0)
     validations:
       required: false

.github/ISSUE_TEMPLATE/3.troubleshooting.yml

@@ -61,7 +61,7 @@ body:
       value: |
         Please at least include those informations:
         - Operating system: (eg. Ubuntu 24.04.2)
-        - Ruby version: (from `ruby --version`, eg. v4.0.5)
+        - Ruby version: (from `ruby --version`, eg. v4.0.6)
         - Node.js version: (from `node --version`, eg. v22.16.0)
     validations:
       required: false

.github/actions/setup-ruby/action.yml

@@ -23,7 +23,7 @@ runs:
           ${{ inputs.additional-system-dependencies }}
 
     - name: Set up Ruby
-      uses: ruby/setup-ruby@d45b1a4e94b71acab930e56e79c6aa188764e7f9 # v1
+      uses: ruby/setup-ruby@6e5d382445ae5590b7449d8b3bc8cb1c2c27f617 # v1
       with:
         ruby-version: ${{ inputs.ruby-version }}
         bundler-cache: true

.github/workflows/bundler-audit.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@d45b1a4e94b71acab930e56e79c6aa188764e7f9 # v1
+        uses: ruby/setup-ruby@6e5d382445ae5590b7449d8b3bc8cb1c2c27f617 # v1
         with:
           bundler-cache: true
 

.github/workflows/lint-haml.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@d45b1a4e94b71acab930e56e79c6aa188764e7f9 # v1
+        uses: ruby/setup-ruby@6e5d382445ae5590b7449d8b3bc8cb1c2c27f617 # v1
         with:
           bundler-cache: true
 

.github/workflows/lint-ruby.yml

@@ -37,7 +37,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@d45b1a4e94b71acab930e56e79c6aa188764e7f9 # v1
+        uses: ruby/setup-ruby@6e5d382445ae5590b7449d8b3bc8cb1c2c27f617 # v1
         with:
           bundler-cache: true