Use purge instead to uninstall unused db clients

Instead of `remove` that does not remove actual files.

Co-authored-by: @f-io

Author: kkimurak

assets/runtime/functions

@@ -239,7 +239,7 @@ gitlab_uninstall_unused_database_client() {
     # remove unused client using regex above
     UNUSED_DB_CLIENTS=$(apt-cache pkgnames postgresql-client | grep -v -e "${REGEX_DB_CLIENT_VERSIONS_IN_USE}" | tr '\n' ' ')
     echo "- Uninstalling unused client(s): ${UNUSED_DB_CLIENTS}"
-    DEBIAN_FRONTEND=noninteractive apt-get -qq remove -- ${UNUSED_DB_CLIENTS} >/dev/null
+    DEBIAN_FRONTEND=noninteractive apt-get -qq purge -- ${UNUSED_DB_CLIENTS} >/dev/null
   fi
 }