feat: add ranger configuration

.github/ranger.yml

@@ -0,0 +1,25 @@
+# Configuration for the repo ranger bot
+# See docs: https://www.notion.so/Documentation-8d7627bb1f3c42b7b1820e8d6f157a57#9879d1374fab4d1f9c607c230fd5123d
+default:
+  close:
+    # Default time to wait before closing the label. Can either be a number in milliseconds
+    # or a string specified by the `ms` package (https://www.npmjs.com/package/ms)
+    delay: "3 days"
+
+    # Default comment to post when an issue is first marked with a closing label
+    comment: "⚠️ This issue has been marked $LABEL and will be closed in $DELAY."
+
+labels:
+  duplicate: close
+  wontfix: close
+  "squash when passing": merge
+  "rebase when passing": merge
+  "merge when passing": merge
+  stale:
+    action: close
+    delay: 7 days
+    comment: "⚠️ This issue has been marked stale and will automatically be closed in $DELAY."
+  "new contributor":
+    action: comment
+    delay: 5s
+    message: "Thanks for making your first contribution! :slightly_smiling_face:"