Use gzip with best parameter to make logs size smaller

With the best parameter, the logs should be even smaller
than before.

Signed-off-by: Daniel Pawlik <[email protected]>

Author: danpawlik

ci/playbooks/collect-logs.yml

@@ -147,7 +147,7 @@
             ! -name "*.gz"
             ! -name "*.xz"
             -size +2M
-            -exec gzip "{}" +
+            -exec gzip --best "{}" +
 
         - name: Copy files from workspace on node
           vars: