feat: add support for set topic on channels

[jogendra]

No description provided.

[codecov]

Codecov Report

Merging #839 (d28116e) into main (99f6107) will decrease coverage by 0.06%.
The diff coverage is 40.00%.

❗ Current head d28116e differs from pull request most recent head e534644. Consider uploading reports for the commit e534644 to get more accurate results

@@            Coverage Diff             @@
##             main     #839      +/-   ##
==========================================
- Coverage   74.10%   74.05%   -0.06%     
==========================================
  Files          26       26              
  Lines        1263     1272       +9     
==========================================
+ Hits          936      942       +6     
- Misses        327      330       +3     

Files Changed	Coverage Δ
machine/clients/slack.py	64.11% <33.33%> (-0.56%)	⬇️
machine/plugins/base.py	75.00% <50.00%> (-0.81%)	⬇️

... and 2 files with indirect coverage changes

[DonDebonair]

Awesome! Can you rebase your branch on main? I did a lot of dependency updates today.
Also, if you want, you can add yourself to the AUTHORS file

[DonDebonair]

Released in v0.34.0