Add PR size labeler

.github/workflows/pr-labeler.yml

@@ -0,0 +1,25 @@
+name: PR labeler
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  size-labeler:
+    runs-on: ubuntu-latest
+    name: Label the PR size
+    steps:
+      - uses: codelytv/pr-size-labeler@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          xs_label: "xs"
+          xs_max_size: "10"
+          s_label: "s"
+          s_max_size: "100"
+          m_label: "m"
+          m_max_size: "500"
+          l_label: "l"
+          l_max_size: "1000"
+          xl_label: "xl"
+          fail_if_xl: "false"
+          files_to_ignore: "yarn.lock"