deps: update pyyaml requirement from >=6.0 to >=6.0.3

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...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]

pyproject.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "Validation and publishing tooling for BC Gov agent skill profiles."
 requires-python = ">=3.12"
 dependencies = [
-    "pyyaml>=6.0",
+    "pyyaml>=6.0.3",
 ]
 
 [dependency-groups]