test: no overrite flag

Author: AshFungor

.github/workflows/mainline-test.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Extract and run tarballs
         run: |
           for archive in artifacts/*.tar.gz; do
-            tar -xzf "$archive" -C / --overwrite --recursive-unlink
+            tar -xpf "$archive" -C / --overwrite
             for f in /opt/hcpu/tests/*; do
               [ -f "$f" ] && [ -x "$f" ] && "$f"
             done