Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Benoit Tigeot <benoittgt@users.noreply.github.com>
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>

.github/workflows/label-pr.yml

@@ -1,7 +1,8 @@
 name: Label PRs
 on:
   pull_request_target:
-    types: [opened]
+    branches: [dev-v3]
+    types: [opened, reopened, edited, synchronize]
 permissions: {}
 jobs:
   label: