build(deps): bump slack-bolt from 1.26.0 to 1.27.0

Bumps [slack-bolt](https://github.com/slackapi/bolt-python) from 1.26.0 to 1.27.0.
- [Release notes](https://github.com/slackapi/bolt-python/releases)
- [Commits](slackapi/bolt-python@v1.26.0...v1.27.0)

---
updated-dependencies:
- dependency-name: slack-bolt
  dependency-version: 1.27.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 slack-sdk==3.37.0
-slack-bolt==1.26.0
+slack-bolt==1.27.0
 
 # If you use a different LLM vendor, replace this dependency
 openai