build(deps): bump pytz from 2023.2 to 2023.3 (#578)

Bumps [pytz](https://github.com/stub42/pytz) from 2023.2 to 2023.3.
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2023.2...release_2023.3)

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

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

Author: dependabot[bot]

demos/motortwit/requirements.txt

@@ -4,6 +4,6 @@ aiohttp_security==0.4.0
 bcrypt==4.0.1
 faker==18.3.1
 motor==3.1.1
-pytz==2023.2
+pytz==2023.3
 pyyaml==6.0
 trafaret==2.1.1