Add bazel parameterization to ruby install tests

.github/workflows/ruby_install.yml

@@ -18,7 +18,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.6, 2.7, 3.0, 3.1, 3.2, jruby-9.2, jruby-9.3]
+        include:
+          - { ruby: 2.6, bazel: 6.0.0}
+          - { ruby: 2.7, bazel: 6.0.0}
+          - { ruby: 3.0, bazel: 6.0.0}
+          - { ruby: 3.1, bazel: 6.0.0}
+          - { ruby: 3.2, bazel: 6.0.0}
+          - { ruby: jruby-9.2, bazel: 6.0.0}
+          - { ruby: jruby-9.3, bazel: 6.0.0}
+          - { ruby: 2.6, bazel: 5.1.1}
+          - { ruby: jruby-9.2, bazel: 5.1.1}
 
     steps:
       - uses: actions/checkout@v2
@@ -26,7 +35,7 @@ jobs:
         run: |
           sudo apt-get install -qy wget
           mkdir $HOME/bin
-          wget -O $HOME/bin/bazel https://github.com/bazelbuild/bazel/releases/download/6.0.0/bazel-6.0.0-linux-x86_64
+          wget -O $HOME/bin/bazel https://github.com/bazelbuild/bazel/releases/download/${{ matrix.bazel }}/bazel-${{ matrix.bazel }}-linux-x86_64
           chmod a+x $HOME/bin/bazel
       - name: Install git
         run: |