🤖 Sync org-wide files to upstream repo (#1393)

Author: exercism-bot

.github/labels.yml

@@ -133,6 +133,11 @@
   description: "Work on Documentation"
   color: "3c2d9f"
 
+# This label can be added to accept PRs as part of Hacktoberfest
+- name: "hacktoberfest-accepted"
+  description: "Make this PR count for hacktoberfest"
+  color: "ff7518"
+
 # This Exercism-wide label is added to all automatically created pull requests that help migrate/prepare a track for Exercism v3
 - name: "v3-migration 🤖"
   description: "Preparing for Exercism v3"