tests: do not skip tests upon --scrub failure

The #1586 introduced broken config files:
$ mock -r alma-kitten+epel-10-x86_64_v2 --scrub=all
ERROR: Could not find included config file: /etc/mock/almalinux-kitten-10-x86_64_v2.cfg

It doesn't make sense to skip the testing in this situation.

Author: praiskup

mock/integration-tests/runconfigs.sh

@@ -81,7 +81,7 @@ for i in $configs; do
 	echo "PASSED: $i"
     fi
 
-    runcmd "$MOCKCMD -r $name --scrub=all"  || die "can not scrub"
+    runcmd "$MOCKCMD -r $name --scrub=all"  || echo >&2 "Can not even --scrub $name!"
 done
 
 msg=$(printf "%d configuration failures\n" $fails)