build: adjust script path for model-api-gen-gradle-test

Author: nkoester

.github/workflows/build.yaml

@@ -24,7 +24,7 @@ jobs:
       - name: Test Metamodel Gradle Plugin
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: metamodel-gradle-test/ci.sh
+        run: model-api-gen-gradle-test/ci.sh
       - name: Archive test report
         uses: actions/upload-artifact@v3
         if: always()