windows can't clean up the temp dir

Author: zeitlinger

.github/workflows/build.yml

@@ -96,6 +96,7 @@ jobs:
           "-PtestJavaVersion=${{ matrix.test-java-version }}"
           "-Porg.gradle.java.installations.paths=${{ steps.setup-test-java.outputs.path }}"
           "-Porg.gradle.java.installations.auto-download=false"
+          "-Pjunit.jupiter.tempdir.cleanup.mode.default=NEVER"
 
   integration-test:
     runs-on: ubuntu-latest