Update slack-sdk requirement from ==3.31.* to >=3.31,<3.33

Updates the requirements on [slack-sdk](https://github.com/slackapi/python-slack-sdk) to permit the latest version.
- [Release notes](https://github.com/slackapi/python-slack-sdk/releases)
- [Commits](slackapi/python-slack-sdk@v3.31.0...v3.32.0)

---
updated-dependencies:
- dependency-name: slack-sdk
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

setup.py

@@ -22,7 +22,7 @@
         "pyyaml==6.0.*",
         "croniter==2.0.*",
         "tabulate==0.9.*",
-        "slack-sdk==3.31.*",
+        "slack-sdk>=3.31,<3.33",
         "backoff==2.2.*",
     ],
     extras_require={