change the backport label

By request in Matrix. If anyone else has an opinion, speak now or forever hold your peace! ☺ The new label is `Backport #NNN: title` which with GitHub's prefix and suffix for email is `[haskell/cabal] Backport #NNN: title (PR #MMM)`
haskell · Oct 18, 2024 · b2cd09d · b2cd09d
1 parent e8b1591
commit b2cd09d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/.github/mergify.yml b/.github/mergify.yml
@@ -170,3 +170,8 @@ queue_rules:
     update_bot_account: Mikolaj
     merge_method: squash
     update_method: merge
+
+defaults:
+  actions:
+    backport:
+      title: "Backport #{{ number }}: {{ title }}"