enable new github actions

Author: sakthivelmanii

.github/workflows/ci.yaml

@@ -52,9 +52,25 @@ jobs:
     - run: .kokoro/build.sh
       env:
         JOB_TYPE: test
-        GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS: true
         GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_PARTITIONED_OPS: true
         GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_FOR_RW: true
+  units-without-multiplexed-session:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        java: [ 11, 17, 21 ]
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-java@v3
+      with:
+        distribution: temurin
+        java-version: ${{matrix.java}}
+    - run: java -version
+    - run: .kokoro/build.sh
+      env:
+        JOB_TYPE: test
+        GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS: false
   units-java8:
     # Building using Java 17 and run the tests with Java 8 runtime
     name: "units (8)"
@@ -96,6 +112,26 @@ jobs:
           GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS: true
           GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_PARTITIONED_OPS: true
           GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_FOR_RW: true
+  units-without-multiplexed-session8:
+    # Building using Java 17 and run the tests with Java 8 runtime
+    name: "units-with-multiplexed-session (8)"
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-java@v3
+      with:
+        java-version: 8
+        distribution: temurin
+    - run: echo "SUREFIRE_JVM_OPT=-Djvm=${JAVA_HOME}/bin/java" >> $GITHUB_ENV
+      shell: bash
+    - uses: actions/setup-java@v3
+      with:
+        java-version: 17
+        distribution: temurin
+    - run: .kokoro/build.sh
+      env:
+        JOB_TYPE: test
+        GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS: false
   windows:
     runs-on: windows-latest
     steps: