Update dependabot to consider datafusion-cli (#10108)

Author: Jefffrey

.github/dependabot.yml

@@ -28,6 +28,20 @@ updates:
       # arrow is bumped manually
       - dependency-name: "arrow*"
         update-types: ["version-update:semver-major"]
+  - package-ecosystem: cargo
+    directory: "datafusion-cli/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
+    target-branch: main
+    labels: [auto-dependencies]
+    ignore:
+      # arrow is bumped manually
+      - dependency-name: "arrow*"
+        update-types: ["version-update:semver-major"]
+      # datafusion is bumped manually
+      - dependency-name: "datafusion*"
+        update-types: ["version-update:semver-major"]
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule: