ci: update dependencies on 25.11 branch (#2027)

Link: https://github.com/nix-community/stylix/pull/2027

Reviewed-by: NAHO <90870942+trueNAHO@users.noreply.github.com>

.github/dependabot.yml

@@ -7,6 +7,9 @@ updates:
     target-branch: "master"
     schedule:
       interval: daily
-    labels: ["topic: dependencies", "backport: release-25.05"]
+    labels:
+      - "topic: dependencies"
+      - "backport: release-25.05"
+      - "backport: release-25.11"
     commit-message:
       prefix: "ci"

.github/workflows/update-flake.yml

@@ -16,7 +16,7 @@ jobs:
     if: vars.APP_ID
     strategy:
       matrix:
-        branch: [master, release-25.05]
+        branch: [master, release-25.11, release-25.05]
     steps:
       - id: generate-token
         uses: actions/create-github-app-token@v2