Update github-pages-deploy-action to 4.7.3

Bump JamesIves/github-pages-deploy-action to 4.7.3 to fix a worktree creation issue.

Author: flit

.github/workflows/deploy.yaml

@@ -18,7 +18,7 @@ jobs:
         uses: jerryjvl/jekyll-build-action@v1
 
       - name: Deploy 🚀
-        uses: JamesIves/github-pages-deploy-action@v4.3.3
+        uses: JamesIves/github-pages-deploy-action@v4.7.3
         with:
           branch: main
           folder: _site