Revert "Turn on dependabot (#9540)" (#9727)

This reverts commit f45208c.

Author: penalosa

.github/dependabot.yml

@@ -39,7 +39,11 @@ updates:
     reviewers:
       - "@cloudflare/wrangler"
     labels:
+      - "miniflare"
       - "dependencies"
       - "skip-pr-description-validation"
       - "e2e"
       - "every-os"
+    allow:
+      - dependency-name: "workerd"
+      - dependency-name: "@cloudflare/workers-types"