build(deps): bump @slack/bolt from 4.6.0 to 4.7.1 (#27)

Bumps [@slack/bolt](https://github.com/slackapi/bolt-js) from 4.6.0 to 4.7.1.
- [Release notes](https://github.com/slackapi/bolt-js/releases)
- [Changelog](https://github.com/slackapi/bolt-js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/slackapi/bolt-js/compare/@slack/bolt@4.6.0...v4.7.1)

---
updated-dependencies:
- dependency-name: "@slack/bolt"
  dependency-version: 4.7.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -9,6 +9,6 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@slack/bolt": "^4.6.0"
+    "@slack/bolt": "^4.7.1"
   }
 }