Bump pillow from 10.2.0 to 10.3.0 in /requirements (#342)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 10.2.0 to 10.3.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@10.2.0...10.3.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/requirements-macOS-latest-3.9.txt

@@ -141,7 +141,7 @@ param==1.13.0
     #   pyviz-comms
 partd==1.4.0
     # via dask
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   bokeh
     #   imageio

requirements/requirements-ubuntu-latest-3.9.txt

@@ -172,7 +172,7 @@ param==1.13.0
     #   pyviz-comms
 partd==1.4.0
     # via dask
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   bokeh
     #   imageio

requirements/requirements-windows-latest-3.9.txt

@@ -145,7 +145,7 @@ param==1.13.0
     #   pyviz-comms
 partd==1.4.0
     # via dask
-pillow==10.2.0
+pillow==10.3.0
     # via
     #   bokeh
     #   imageio