workflows: fix usess

Author: Sofia "dzshn" N. L

.github/workflows/pages.yml

@@ -24,10 +24,10 @@ jobs:
                   ./build.sh
 
             - name: Upload pages
-              uses: actions/upload-artifacts@v2
+              uses: actions/upload-artifact@v2
               with:
                   name: pages
                   path: docs/build
 
             - name: Publish pages
-              uses: actions/deploy-pages@latest
+              uses: actions/deploy-pages@479e82243a95585ebee8ab037c4bfd8e6356a47b