Integrate renovatebot for dependency updates

Integrate renovatebot for dependency updates. See #241

.gitlab/ci/.renovate.yml

@@ -6,14 +6,14 @@ renovate:
     variables:
         LOG_LEVEL: debug
 
-    # renovate:on-schedule:
-    #   only:
-    #     - schedules
-    #   script:
-    #     - renovate $RENOVATE_EXTRA_FLAGS
-
-
-    except:
+    renovate:on-schedule:
+      only:
         - schedules
-    script:
-        - renovate --dry-run $RENOVATE_EXTRA_FLAGS
+      script:
+        - renovate $RENOVATE_EXTRA_FLAGS
+
+    # Dry-Run for debugging
+    # except:
+    #     - schedules
+    # script:
+    #     - renovate --dry-run $RENOVATE_EXTRA_FLAGS