Update JamesIves/github-pages-deploy-action action to v4.7.3

Author: renovate[bot]

.github/workflows/docs.yml

@@ -53,6 +53,6 @@ jobs:
         run: rm docs/.gitignore
 
       - name: Deploy to GitHub Pages
-        uses: JamesIves/github-pages-deploy-action@v4.6.1
+        uses: JamesIves/github-pages-deploy-action@v4.7.3
         with:
           folder: docs