Bump langchain-experimental from 0.0.59 to 0.0.64

Bumps [langchain-experimental](https://github.com/langchain-ai/langchain) from 0.0.59 to 0.0.64.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-experimental==0.0.59...langchain-experimental==0.0.64)

---
updated-dependencies:
- dependency-name: langchain-experimental
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

setup-requirements.txt

@@ -4,7 +4,7 @@ rich>=11.0,<14.0
 langchain==0.2.1
 langchain-community==0.2.1
 langchain-core==0.2.1
-langchain-experimental==0.0.59
+langchain-experimental==0.0.64
 langchain-openai==0.1.7
 langchain-text-splitters==0.2.0
 langchainhub==0.1.16