ci: Force UTF-8 on Windows

Author: SMadani

.github/workflows/build.yml

@@ -55,7 +55,7 @@ jobs:
           java-version: ${{ matrix.java }}
           cache: maven
       - name: Test with Maven
-        run: mvn -e --batch-mode clean verify
+        run: mvn -e --batch-mode clean verify -Dfile.encoding=UTF8
       - name: Run Codecov
         uses: codecov/codecov-action@v4
         with: