Update workflow file

Author: kwin

.github/workflows/maven-ci.yml

@@ -14,4 +14,4 @@ jobs:
       with:
         java-version: 1.8
     - name: Build with Maven
-      run: mvn -B package --file pom.xml
+      run: mvn -B package --file com.googlecode.cppcheclipse.parent/pom.xml