release: 0.23.6 (#9508)

## Release 0.23.6

Bumps version to `0.23.6` (patch release).

### After merge
1. Push to `main` triggers a **dev release** (pre-release to PyPI)
2. The `release-tag` workflow detects this merged release PR and creates
tag `0.23.6`
3. Tag push triggers the **production release** (publish to PyPI,
Docker, etc.)

### Checklist
- [x] CI passes
- [x] Version in `pyproject.toml` is correct (`0.23.6`)

Author: mscolnick

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "uv_build"
 
 [project]
 name = "marimo"
-version = "0.23.5"
+version = "0.23.6"
 description = "A library for making reactive notebooks and apps"
 # We try to keep dependencies to a minimum, to avoid conflicts with
 # user environments; we need a very compelling reason for each dependency added.