build: upload the latest main build for dev installer

[zimeg]

Changelog

N/A for public changelog but those following along might be curious to development builds!

Summary

This PR uploads the latest main build for the "dev" installer 🎁

Reviewers

We'll overwrite the _dev build with each upload to match what the installer expects:

slack-cli/scripts/install-dev.sh

Line 139 in 346be01

slack_cli_url="https://downloads.slack-edge.com/slack-cli/slack_cli_${SLACK_CLI_DEV_VERSION}_macOS_arm64.tar.gz"

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.23%. Comparing base (346be01) to head (42efee2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #487      +/-   ##
==========================================
+ Coverage   71.21%   71.23%   +0.01%     
==========================================
  Files         222      222              
  Lines       18664    18664              
==========================================
+ Hits        13292    13295       +3     
+ Misses       4190     4189       -1     
+ Partials     1182     1180       -2     

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