Bump cratedb-toolkit in /topic/machine-learning/llm-langchain

Bumps [cratedb-toolkit](https://github.com/crate-workbench/cratedb-toolkit) from 0.0.14 to 0.0.15.
- [Release notes](https://github.com/crate-workbench/cratedb-toolkit/releases)
- [Changelog](https://github.com/crate-workbench/cratedb-toolkit/blob/main/CHANGES.md)
- [Commits](crate/cratedb-toolkit@v0.0.14...v0.0.15)

---
updated-dependencies:
- dependency-name: cratedb-toolkit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

topic/machine-learning/llm-langchain/requirements.txt

@@ -1,6 +1,6 @@
 # Real.
 crash
-cratedb-toolkit==0.0.14
+cratedb-toolkit==0.0.15
 google-cloud-aiplatform<2
 langchain-google-vertexai<2
 langchain-openai<0.2