ci: remove EXTRA_PACKAGES from deploy_docs workflow

Author: S1M0N38

.github/workflows/deploy_docs.yml

@@ -21,5 +21,4 @@ jobs:
       - name: Deploy docs
         uses: mhausenblas/mkdocs-deploy-gh-pages@master
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          EXTRA_PACKAGES: build-base
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}