chore(deps): update pyyaml requirement in /bots/gsbot

Updates the requirements on [pyyaml](https://github.com/yaml/pyyaml) to permit the latest version.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/6.0.3/CHANGES)
- [Commits](yaml/pyyaml@6.0.1...6.0.3)

---
updated-dependencies:
- dependency-name: pyyaml
  dependency-version: 6.0.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

bots/gsbot/requirements.txt

@@ -30,5 +30,5 @@ mypy>=1.7.1
 pylint>=3.3.9
 
 # Utilities
-pyyaml>=6.0.1
+pyyaml>=6.0.3
 colorlog>=6.8.0