Bumped upload-pages-artifact version to v3.0.1 and deploy-pages versi…

…on to v4.0.5 to solve safety issue with actions/artifact (GHSA-6q32-hq47-5qq3). Directly committed to 'development' without a PR.

.github/workflows/deploy_to_github_pages.yml

@@ -131,7 +131,7 @@ jobs:
           chmod -c -R +rX ../website
 
       - name: Create artifact for deployment to GitHub Pages
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa #v3.0.1
         with:
           path: ../website
 
@@ -147,7 +147,7 @@ jobs:
 
     steps:
       - name: Deploy to GitHub Pages
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e #v4.0.5
 
       - name: Output success status
         id: success