Switch to Java 11 and Postgres 13

Author: vadeg

.github/workflows/workflow.yml

@@ -15,7 +15,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:9.6.10
+        image: postgres:13
         env:
           POSTGRES_PASSWORD: postgres
         # Set health checks to wait until postgres has started
@@ -29,10 +29,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
+    - name: Set up JDK 11
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 11
     - name: Cache local Maven repository
       uses: actions/cache@v2
       with: