Remove Docker configuration from dependabot.yml

Removed Docker package ecosystem configuration from Dependabot.

Signed-off-by: James Pether Sörling <pethers@users.noreply.github.com>

Author: pethers

.github/dependabot.yml

@@ -11,11 +11,6 @@ updates:
     commit-message:
       prefix: "chore(deps)"
 
-  - package-ecosystem: docker
-    directory: /
-    schedule:
-      interval: daily
-
   # npm dependency updates with grouping
   - package-ecosystem: npm
     directory: /