Bump action versions in Deploy workflow (#524)

Required due to an intentional deprecation/breakage on GitHub's side.

Author: Fayti1703

.github/workflows/push-deploy.yml

@@ -45,7 +45,7 @@ jobs:
       - name: Build site
         run: pnpm build
       - name: Upload build artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
         with:
           path: ./build
 
@@ -59,4 +59,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v4