Upgrade CI to JDK 17

Author: wojta

.github/workflows/build.yml

@@ -44,10 +44,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: set up JDK 11
+      - name: set up JDK 17
         uses: actions/setup-java@v3
         with:
-          java-version: '11'
+          java-version: '17'
           distribution: 'adopt'
           cache: gradle
 
@@ -66,10 +66,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Setup JDK 11
+      - name: Setup JDK 17
         uses: actions/setup-java@v3
         with:
-          java-version: '11'
+          java-version: '17'
           distribution: 'adopt'
           cache: gradle