Don't run tests after regenerating (openmaptiles#153)

Author: msbarry

.github/workflows/maven.yml

@@ -69,7 +69,7 @@ jobs:
           cache: 'maven'
       - run: ./scripts/regenerate-openmaptiles.sh
       # Skip spotless since that gets checked in a separate task
-      - run: ./mvnw -Dspotless.check.skip --batch-mode -no-transfer-progress clean verify
+      - run: ./mvnw -DskipTests -Dspotless.check.skip --batch-mode -no-transfer-progress clean verify
 
   run:
     name: Build / Run
@@ -138,4 +138,4 @@ jobs:
         working-directory: planetiler
         run: ./scripts/test-release.sh CI_ONLY
         env:
-          SKIP_EXAMPLE_PROJECT: true
+          SKIP_EXAMPLE_PROJECT: true