chore(deps): bump modal from 0.61.109 to 0.64.4

Bumps [modal](https://github.com/modal-labs/modal-client) from 0.61.109 to 0.64.4.
- [Changelog](https://github.com/modal-labs/modal-client/blob/main/CHANGELOG.md)
- [Commits](modal-labs/modal-client@v0.61.109...v0.64.4)

---
updated-dependencies:
- dependency-name: modal
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pyproject.toml

@@ -37,7 +37,7 @@ langchain-experimental = "^0.0.54"
 langchain-community = "^0.0.32"
 # langchain-together = "^0.0.2.post1"
 # langchain-fireworks = "^0.1.1"
-modal = "^0.61.54"
+modal = ">=0.61.54,<0.65.0"
 typer = "^0.9.0"
 langserve = {extras = ["all"], version = ">=0.0.30"} #"^0.1.1"
 langchain-groq = "^0.1.3"