Add dev docs cleanup workflow

Author: icweaver

.github/workflows/Documentation.yml

@@ -19,3 +19,28 @@ jobs:
         env:
           DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  dev-docs-cleanup:
+    needs: docs
+    name: dev docs cleanup
+        runs-on: ubuntu-latest
+    steps:
+      - name: Checkout gh-pages branch
+        uses: actions/checkout@v4
+        with:
+          ref: gh-pages
+
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: '1'
+      - uses: julia-actions/cache@v2
+
+      - name: Delete dev docs
+        run: |
+          git rm -rf ./*/dev/
+      - name: Push changes
+        run: |
+          git config user.name "Documenter.jl"
+          git config user.email "[email protected]"
+          git commit -m "delete dev docs"
+          git branch gh-pages-new $(echo "delete history" | git commit-tree HEAD^{tree})
+          git push --force origin gh-pages-new:gh-pages