Add 7.x branch to dependabot configuration

Signed-off-by: GitHub Action <action@github.com>

Author: actions-user

.github/dependabot.yml

@@ -78,3 +78,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-major"]
+
+  # Updates for 7.x branch
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    assignees:
+      - ricardozanini
+      - fjtirado
+    target-branch: "7.x"
+    groups:
+      patch-updates:
+        patterns:
+          - "*"
+        update-types:
+          - "patch"
+      minor-updates:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+    open-pull-requests-limit: 10
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]