chore(deps): bump mkdocs-llmstxt from 0.2.0 to 0.3.0 (#6978)

Bumps [mkdocs-llmstxt](https://github.com/pawamoy/mkdocs-llmstxt) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/pawamoy/mkdocs-llmstxt/releases)
- [Changelog](https://github.com/pawamoy/mkdocs-llmstxt/blob/main/CHANGELOG.md)
- [Commits](pawamoy/mkdocs-llmstxt@0.2.0...0.3.0)

---
updated-dependencies:
- dependency-name: mkdocs-llmstxt
  dependency-version: 0.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -129,7 +129,7 @@ boto3-stubs = {extras = ["appconfig", "appconfigdata", "cloudformation", "cloudw
 nox = "^2024.4.15"
 mkdocstrings-python = "^1.13.0"
 datadog-lambda = "^6.106.0"
-mkdocs-llmstxt = "^0.2.0"
+mkdocs-llmstxt = ">=0.2,<0.4"
 avro = "^1.12.0"
 protobuf = "^6.30.2"
 types-protobuf = "^6.30.2.20250516"