Combine two functionally equivalent rake-test jobs

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        target: ['test:jruby:int', 'spec:ruby:fast', 'spec:ji', 'spec:ffi']
+        target: ['test:jruby:int', 'spec:ruby:fast', 'spec:ji', 'spec:ffi', 'test:mri:core:jit', 'test:mri:extra', 'spec:ruby:fast:jit', 'test:mri:stdlib', 'spec:ruby:slow', 'spec:ruby:debug', 'test:jruby:aot', 'test:slow_suites', 'spec:compiler', 'spec:regression', 'spec:jruby', 'spec:jrubyc', 'spec:profiler']
         java-version: ['21', '23']
       fail-fast: false
 
@@ -39,34 +39,6 @@ jobs:
       - name: rake ${{ matrix.target }}
         run: bin/jruby -S rake ${{ matrix.target }}
 
-  rake-test:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        target: ['test:mri:core:jit', 'test:mri:extra', 'spec:ruby:fast:jit', 'test:mri:stdlib', 'spec:ruby:slow', 'spec:ruby:debug', 'test:jruby:aot', 'test:slow_suites', 'spec:compiler', 'spec:regression', 'spec:jruby', 'spec:jrubyc', 'spec:profiler']
-      fail-fast: false
-
-    name: rake ${{ matrix.target }} (Java 21)
-
-    steps:
-      - name: checkout
-        uses: actions/checkout@v3
-      - name: remove default java except 21
-        run: sudo apt remove temurin-8-jdk temurin-11-jdk temurin-17-jdk
-      - name: set up java 21
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: '21'
-          cache: 'maven'
-      - name: bootstrap
-        run: mvn -Pbootstrap clean package
-      - name: bundle install
-        run: bin/jruby --dev -S bundle install
-      - name: rake ${{ matrix.target }}
-        run: bin/jruby -S rake ${{ matrix.target }}
-
   jruby-tests-dev:
     runs-on: ubuntu-latest