disabled maven cache to test

.github/workflows/main.yaml

@@ -30,7 +30,6 @@ jobs:
         with:
           java-version: ${{ matrix.java_version }}
           distribution: 'temurin'
-          cache: 'maven'
       - name: Build with JDK ${{ matrix.java_version }}
         run: mvn --batch-mode install -DskipITs ${{ matrix.included_modules }}
 
@@ -44,7 +43,6 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-          cache: 'maven'
         # Check we only rely on permissive licenses in the main parts of the library:
       - name: License Compliance
         run: mvn -P compliance org.honton.chas:license-maven-plugin:compliance