Fix codecov CI errors

[seratch]

This pull request resolves the CI error caused by the outdated codecov integration

Category (place an x in each of the [ ])

• [ ] bolt (Bolt for Java)
• [ ] bolt-{sub modules} (Bolt for Java - optional modules)
• [ ] slack-api-client (Slack API Clients)
• [ ] slack-api-model (Slack API Data Models)
• [ ] *slack-api--kotlin-extension** (Kotlin Extensions for Slack API Clients)
• [ ] slack-app-backend (The primitive layer of Bolt for Java)

Requirements

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[codecov[bot]]

Codecov Report

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

Project coverage is 74.93%. Comparing base (298b5aa) to head (375c008). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1304 +/- ## ============================================ + Coverage 74.57% 74.93% +0.35% + Complexity 4137 4131 -6 ============================================ Files 443 443 Lines 13079 12786 -293 Branches 1319 1319 ============================================ - Hits 9754 9581 -173 + Misses 2564 2439 -125 - Partials 761 766 +5 ```

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