Build(deps): Update llm requirement in /topic/machine-learning/llm

Updates the requirements on [llm](https://github.com/simonw/llm) to permit the latest version.
- [Release notes](https://github.com/simonw/llm/releases)
- [Changelog](https://github.com/simonw/llm/blob/main/docs/changelog.md)
- [Commits](simonw/llm@0.1...0.30)

---
updated-dependencies:
- dependency-name: llm
  dependency-version: '0.30'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

topic/machine-learning/llm/requirements.txt

@@ -1,3 +1,3 @@
-llm<0.30
+llm<0.31
 llm-anthropic<0.25
 llm-ollama<0.16