Update java version in automated_tests.yml

* Required as nextflow version was built against a non-canonical more recent java version

.github/workflows/automated_tests.yml

@@ -8,10 +8,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-java@v2
+    - uses: actions/setup-java@v3
       with:
         distribution: 'zulu' # See 'Supported distributions' for available options
-        java-version: '8'
+        java-version: '11'
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
@@ -28,4 +28,4 @@ jobs:
         key: ${{ runner.os }}-tronflow-mutect2
     - name: Run tests
       run: |
-        make
+        make