chore: add pr:discussion-first and needs-details label actions (#22060)

.github/label-actions.yml

@@ -178,6 +178,26 @@
 
     The Renovate team
 
+'pr:discussion-first':
+  comment: >
+    **Please create a GitHub Discussion before continuing with this PR.**
+
+
+    Thank you for your PR, but we need to discuss the requirements and implementation first.
+    This PR will be closed, but you can reopen it after the discussion has been resolved.
+
+
+    Thanks, The Renovate team
+  close: true
+
+'needs-details':
+  comment: >
+    Hi there,
+
+
+    This discussion is missing some details, making it difficult or impossible to help you.
+    Please try again to provide more details.
+
 'needs-discussion':
   unlabel:
     - 'type:bug'