Bump @slack/logger from 3.0.0 to 4.0.0

Bumps [@slack/logger](https://github.com/slackapi/node-slack-sdk) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/slackapi/node-slack-sdk/releases)
- [Commits](https://github.com/slackapi/node-slack-sdk/compare/@slack/logger@3.0.0...@slack/logger@4.0.0)

---
updated-dependencies:
- dependency-name: "@slack/logger"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -41,7 +41,7 @@
     "url": "https://github.com/slackapi/bolt-js/issues"
   },
   "dependencies": {
-    "@slack/logger": "^3.0.0",
+    "@slack/logger": "^4.0.0",
     "@slack/oauth": "^2.6.1",
     "@slack/socket-mode": "^1.3.2",
     "@slack/types": "^2.8.0",