Update PR labeling requirements (#4618)

Author: NicolasHug

.github/process_commit.py

@@ -12,15 +12,19 @@
 
 import requests
 
-# If the PR has any of these labels, we accept it as properly labeled.
-REQUIRED_LABELS = {
+# For a PR to be properly labeled it should have one primary label and one secondary label
+PRIMARY_LABELS = {
     "new feature",
     "bug",
     "code quality",
     "enhancement",
     "bc-breaking",
-    "dependency issue",
     "deprecation",
+    "other",
+}
+
+SECONDARY_LABELS = {
+    "dependency issue",
     "module: c++ frontend",
     "module: ci",
     "module: datasets",
@@ -69,7 +73,7 @@ def get_pr_merger_and_labels(pr_number: int) -> Tuple[str, Set[str]]:
         sys.exit(0)
 
     merger, labels = get_pr_merger_and_labels(pr_number)
-    is_properly_labeled = bool(REQUIRED_LABELS.intersection(labels))
+    is_properly_labeled = bool(PRIMARY_LABELS.intersection(labels) and SECONDARY_LABELS.intersection(labels))
 
     if not is_properly_labeled:
         print(f"@{merger}")

.github/workflows/pr-labels.yml

@@ -32,4 +32,4 @@ jobs:
           message: |
             Hey ${{ steps.commit.outputs.merger }}!
 
-            You merged this PR, but no labels were added.
+            You merged this PR, but no labels were added. The list of valid labels is available at https://github.com/pytorch/vision/blob/main/.github/process_commit.py