[DEPENDABOT]: Bump bokeh from 3.7.3 to 3.9.1

Bumps [bokeh](https://github.com/bokeh/bokeh) from 3.7.3 to 3.9.1.
- [Changelog](https://github.com/bokeh/bokeh/blob/3.9.1/docs/CHANGELOG)
- [Commits](bokeh/bokeh@3.7.3...3.9.1)

---
updated-dependencies:
- dependency-name: bokeh
  dependency-version: 3.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -7,7 +7,7 @@ anyio==4.13.0 ; python_version >= "3.11" and python_version < "3.14"
 attrs==26.1.0 ; python_version >= "3.11" and python_version < "3.14"
 backports-tarfile==1.2.0 ; python_version == "3.11"
 backports-zstd==1.5.0 ; python_version >= "3.11" and python_version < "3.14"
-bokeh==3.7.3 ; python_version >= "3.11" and python_version < "3.14"
+bokeh==3.9.1 ; python_version >= "3.11" and python_version < "3.14"
 build==1.5.0 ; python_version >= "3.11" and python_version < "3.14"
 cachecontrol==0.14.4 ; python_version >= "3.11" and python_version < "3.14"
 certifi==2026.5.20 ; python_version >= "3.11" and python_version < "3.14"