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Use readable version refs so GitHub Actions dependency pins can be managed in the workflow lockfile.

Co-authored-by: Codex <codex@openai.com>

Author: sue445

.github/workflows/test.yml

@@ -24,9 +24,9 @@ jobs:
           - "4.0"
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@v7.0.1
 
-      - uses: ruby/setup-ruby@7f797815d8adceb1c412e7abefdd1ab4abc47a5f # v1.335.0
+      - uses: ruby/setup-ruby@v1.335.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
@@ -43,7 +43,7 @@ jobs:
       - run: bundle exec rake spec
 
       - name: Slack Notification (not success)
-        uses: act10ns/slack@d96404edccc6d6467fc7f8134a420c851b1e9054 # v2.2.0
+        uses: act10ns/slack@v2.2.0
         if: "! success()"
         continue-on-error: true
         with:
@@ -55,9 +55,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@v7.0.1
 
-      - uses: ruby/setup-ruby@7f797815d8adceb1c412e7abefdd1ab4abc47a5f # v1.335.0
+      - uses: ruby/setup-ruby@v1.335.0
         with:
           ruby-version: ruby
           bundler-cache: true
@@ -71,7 +71,7 @@ jobs:
       - run: bundle exec rake rubocop
 
       - name: Slack Notification (not success)
-        uses: act10ns/slack@d96404edccc6d6467fc7f8134a420c851b1e9054 # v2.2.0
+        uses: act10ns/slack@v2.2.0
         if: "! success()"
         continue-on-error: true
         with:
@@ -82,9 +82,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@v7.0.1
 
-      - uses: ruby/setup-ruby@7f797815d8adceb1c412e7abefdd1ab4abc47a5f # v1.335.0
+      - uses: ruby/setup-ruby@v1.335.0
         with:
           ruby-version: ruby
           bundler-cache: true
@@ -99,7 +99,7 @@ jobs:
       - run: bundle exec rake rbs
 
       - name: Slack Notification (not success)
-        uses: act10ns/slack@d96404edccc6d6467fc7f8134a420c851b1e9054 # v2.2.0
+        uses: act10ns/slack@v2.2.0
         if: "! success()"
         continue-on-error: true
         with:
@@ -110,9 +110,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/checkout@v7.0.1
 
-      - uses: ruby/setup-ruby@7f797815d8adceb1c412e7abefdd1ab4abc47a5f # v1.335.0
+      - uses: ruby/setup-ruby@v1.335.0
         with:
           ruby-version: ruby
           bundler-cache: true
@@ -130,7 +130,7 @@ jobs:
           ls -ld doc/
 
       - name: Slack Notification (not success)
-        uses: act10ns/slack@d96404edccc6d6467fc7f8134a420c851b1e9054 # v2.2.0
+        uses: act10ns/slack@v2.2.0
         if: "! success()"
         continue-on-error: true
         with:
@@ -150,6 +150,6 @@ jobs:
 
     steps:
       - name: check dependent jobs
-        uses: re-actors/alls-green@b5b5b37504aa4183270bd3d855c52a67f212be35 # v1.3.0
+        uses: re-actors/alls-green@v1.3.0
         with:
           jobs: ${{ toJSON(needs) }}