Disable dependabot (#7603)

.github/dependabot.yml

@@ -1,27 +0,0 @@
-version: 2
-
-updates:
-  - package-ecosystem: cargo
-    directory: /
-    schedule:
-      interval: weekly
-    # This allows dependabot to update _all_ lockfile packages.
-    #
-    # These will be grouped into the existing group update PRs, so shouldn't generate additional jobs.
-    allow:
-      # Allow both direct and indirect updates for all packages
-      - dependency-type: "all"
-    # Waiting on https://github.com/dependabot/dependabot-core/issues/4009 to be resolved, shouldn't be long.
-    # versioning-strategy: increase-if-necessary
-    groups:
-      patch-updates:
-        patterns:
-          - "*"
-        update-types:
-          - "minor"
-          - "patch"
-
-  - package-ecosystem: github-actions
-    directory: /
-    schedule:
-      interval: weekly