[Misc] We don't have a /Dockerfile in rendering...

.github/dependabot.yml

@@ -25,8 +25,4 @@ updates:
       interval: "weekly"
     allow:
       - dependency-type: "all"
-  - package-ecosystem: "docker"
-    directory: "/"
-    schedule:
-      interval: "weekly"
     open-pull-requests-limit: 15