ci: configure the protected branch (#2342)

Author: burkedavison

.github/workflows/ci.yaml

@@ -1,88 +1,97 @@
-on:
+'on':
   push:
     branches:
-    - main
-  pull_request:
+      - 2.2.x
+  pull_request: null
 name: ci
 jobs:
   units:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11]
+        java:
+          - 8
+          - 11
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: ${{matrix.java}}
-    - run: java -version
-    - run: .kokoro/install_dependencies.sh
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: test
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{matrix.java}}
+      - run: java -version
+      - run: .kokoro/install_dependencies.sh
+      - run: .kokoro/build.sh
+        env:
+          JOB_TYPE: test
   windows:
     runs-on: windows-latest
     steps:
-    - name: git configuration to avoid automatic CRLF conversion
-      run: |
-        git config --global core.autocrlf false
-        git config --global core.eol lf
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: 8
-    - run: java -version
-    - name: Install google-play-services artifact
-      shell: bash
-      run: |
-        mkdir play-services
-        cd play-services
-        curl --output play-services-basement-8.3.0.aar https://dl.google.com/dl/android/maven2/com/google/android/gms/play-services-basement/8.3.0/play-services-basement-8.3.0.aar
-        unzip play-services-basement-8.3.0.aar
-        mvn install:install-file \
-            -Dfile=classes.jar \
-            -DgroupId=com.google.android.google-play-services \
-            -DartifactId=google-play-services \
-            -Dversion=1 \
-            -Dpackaging=jar
-    - run: .kokoro/build.sh
-      shell: bash
-      env:
-        JOB_TYPE: test
+      - name: git configuration to avoid automatic CRLF conversion
+        run: |
+          git config --global core.autocrlf false
+          git config --global core.eol lf
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - run: java -version
+      - name: Install google-play-services artifact
+        shell: bash
+        run: >
+          mkdir play-services
+
+          cd play-services
+
+          curl --output play-services-basement-8.3.0.aar
+          https://dl.google.com/dl/android/maven2/com/google/android/gms/play-services-basement/8.3.0/play-services-basement-8.3.0.aar
+
+          unzip play-services-basement-8.3.0.aar
+
+          mvn install:install-file \
+              -Dfile=classes.jar \
+              -DgroupId=com.google.android.google-play-services \
+              -DartifactId=google-play-services \
+              -Dversion=1 \
+              -Dpackaging=jar
+      - run: .kokoro/build.sh
+        shell: bash
+        env:
+          JOB_TYPE: test
   dependencies:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11]
+        java:
+          - 8
+          - 11
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: ${{matrix.java}}
-    - run: java -version
-    - run: .kokoro/install_dependencies.sh
-    - run: .kokoro/dependencies.sh
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: ${{matrix.java}}
+      - run: java -version
+      - run: .kokoro/install_dependencies.sh
+      - run: .kokoro/dependencies.sh
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: 11
-    - run: java -version
-    - run: .kokoro/install_dependencies.sh
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: lint
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - run: java -version
+      - run: .kokoro/install_dependencies.sh
+      - run: .kokoro/build.sh
+        env:
+          JOB_TYPE: lint
   clirr:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
-      with:
-        java-version: 8
-    - run: java -version
-    - run: .kokoro/install_dependencies.sh
-    - run: .kokoro/build.sh
-      env:
-        JOB_TYPE: clirr
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - run: java -version
+      - run: .kokoro/install_dependencies.sh
+      - run: .kokoro/build.sh
+        env:
+          JOB_TYPE: clirr