Fix actions for deploying documentation (#13)

## Changes
<!-- Summary of your changes that are easy to understand. Add
screenshots when necessary -->
This PR fixes GitHub actions for deploying flowx documentation to GitHub
pages.

### Linked issues
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fixed, resolve, resolves, resolved. See
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N/A

### Tests
<!-- How is this tested? Please see the checklist below and also
describe any other relevant tests -->

- [x] manually tested
- [ ] added unit tests
- [ ] added integration tests

Author: ghanse

.github/workflows/docs-release.yml

@@ -53,7 +53,9 @@ jobs:
   deploy:
     name: Deploy to GitHub Pages
     needs: build
-    runs-on: ubuntu-latest
+    runs-on:
+      group: databricks-solutions-protected-runner-group
+      labels: linux-ubuntu-latest
 
     permissions:
       pages: write

pyproject.toml

@@ -49,7 +49,7 @@ yq = [
 
 [build-system]
 requires = [
-    "hatchling>=1.90,<2.0"
+    "hatchling>=1.27,<2.0"
 ]
 build-backend = "hatchling.build"