Remove wrong dependabot group

This group is for actions, not submodules.

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

.github/dependabot.yml

@@ -86,11 +86,3 @@ updates:
     labels:
       - "part:tooling"
       - "type:tech-debt"
-    groups:
-      compatible:
-        update-types:
-          - "minor"
-          - "patch"
-      artifacts:
-        patterns:
-          - "actions/*-artifact"