Create GitHub action for releasing _freeze folder

.github/workflows/create_release.yml

@@ -0,0 +1,39 @@
+name: Create release with _freeze
+
+on:
+  - workflow_dispatch
+  # Comment out before merging!!
+  - push:
+      branches:
+        - py/release-workflow
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Julia
+        uses: julia-actions/setup-julia@v2
+        with:
+          version: '1.10'
+
+      - name: Set up Quarto
+        uses: quarto-dev/quarto-actions/setup@v2
+        with:
+          # Needs Quarto 1.6 (which is currently a pre-release version) to fix #533
+          version: pre-release
+
+      - name: Render
+        run: quarto render
+
+      - name: Compress _freeze folder
+        run: tar -czf _freeze.tar.gz _freeze
+
+      - name: Create GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          files:
+            - _freeze.tar.gz
+            - Manifest.toml