ENH: update action-style-guide to v0.2 (testing) (#266)

* ENH: enable style-guide checker action

* update to use latest  series tag

* ENH: update to v0.2

Author: mmcky

.github/workflows/style-guide.yml

@@ -12,7 +12,7 @@ jobs:
       pull-requests: write
       issues: read
     steps:
-      - uses: QuantEcon/action-style-guide@v0.1
+      - uses: QuantEcon/action-style-guide@v0.2
         with:
           mode: 'single'
           anthropic-api-key: ${{ secrets.ANTHROPIC_API_KEY }}