Update actions/deploy-pages action to v2 (#514)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/GHPages.yml

@@ -41,4 +41,4 @@ jobs:
                   path: ./docs/.vitepress/dist/eslint-plugin-regexp
             - name: Deploy to GitHub Pages
               id: deployment
-              uses: actions/deploy-pages@v1
+              uses: actions/deploy-pages@v2