ci: directly set ruby version rather than env (#1922)

Author: thompson-tomo

.github/workflows/release-hook-on-closed.yml

@@ -14,14 +14,12 @@ jobs:
       pull-requests: write # required for updating release PRs
       issues: write # required to create issues for failed releases
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Install Toys

.github/workflows/release-hook-on-push.yml

@@ -14,14 +14,12 @@ jobs:
       contents: write # required for updating releases
       pull-requests: write # required for updating release PRs
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Install Toys

.github/workflows/release-perform.yml

@@ -23,14 +23,12 @@ jobs:
       contents: write # required for creating releases
       pull-requests: write # required for creating release PRs
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Install Toys

.github/workflows/release-request-weekly.yml

@@ -13,14 +13,12 @@ jobs:
       contents: write # required for creating releases
       pull-requests: write # required for creating release PRs
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
 
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1

.github/workflows/release-request.yml

@@ -17,14 +17,12 @@ jobs:
       contents: write # required for creating releases
       pull-requests: write # required for creating release PRs
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
 
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1

.github/workflows/release-retry.yml

@@ -20,14 +20,12 @@ jobs:
       contents: write # required for creating releases
       pull-requests: write # required for creating release PRs
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby-contrib' }}
-    env:
-      RUBY_VERSION: "3.2"
     runs-on: ubuntu-latest
     steps:
-      - name: Install Ruby ${{ env.RUBY_VERSION }}
+      - name: Install Ruby
         uses: ruby/setup-ruby@b90be12699fdfcbee4440c2bba85f6f460446bb0 # v1.279.0
         with:
-          ruby-version: ${{ env.RUBY_VERSION }}
+          ruby-version: "3.2"
 
       - name: Checkout repo
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1