fix: bump the api dependency

[WilliamBergamin]

Summary

This PR bumps the deno-slack-api dependency to the latest version

Requirements

• [x] I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• [x] I've read and agree to the Code of Conduct.
• [x] I've ran deno task test after making the changes.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 98.43%. Comparing base (e5ba46f) to head (43dcb6b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #330 +/- ## ======================================= Coverage 98.43% 98.43% ======================================= Files 65 65 Lines 2677 2677 Branches 147 147 ======================================= Hits 2635 2635 Misses 42 42 ```

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