Disable Surefire system classloader in CI

Add -Dsurefire.useSystemClassLoader=false to the Maven test invocation in the GitHub Actions workflow. This disables Surefire's system classloader to avoid classloader-related test failures and improve compatibility when running forked tests in CI.

Author: mercyblitz

.github/workflows/maven-build.yml

@@ -43,6 +43,7 @@ jobs:
           --update-snapshots
           --file pom.xml
           -Drevision=0.0.1-SNAPSHOT
+          -Dsurefire.useSystemClassLoader=false
           test
           --activate-profiles test,coverage,${{ matrix.maven-profile-spring-framework }}