chore(deps): bump slack-bolt from 1.28.0 to 1.29.0 in /pydantic-ai

Bumps [slack-bolt](https://github.com/slackapi/bolt-python) from 1.28.0 to 1.29.0.
- [Release notes](https://github.com/slackapi/bolt-python/releases)
- [Commits](slackapi/bolt-python@v1.28.0...v1.29.0)

---
updated-dependencies:
- dependency-name: slack-bolt
  dependency-version: 1.29.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pydantic-ai/pyproject.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 requires-python = ">=3.10"
 dependencies = [
     "slack-sdk==3.43.0",
-    "slack-bolt==1.28.0",
+    "slack-bolt==1.29.0",
     "slack-cli-hooks==0.3.0",
     "pydantic-ai[openai]==1.107.0",
     "python-dotenv==1.2.2",