replace yarn.lock with pnpm-lock.yaml for labeler

Signed-off-by: Rui Chen <rui@chenrui.dev>

.github/labeler.yml

@@ -42,4 +42,4 @@ website:
 - changed-files:
   - any-glob-to-any-file: 'runatlantis.io/.vuepress/**/*'
   - any-glob-to-any-file: 'package.json'
-  - any-glob-to-any-file: 'yarn.lock'
+  - any-glob-to-any-file: 'pnpm-lock.yaml'