feat: log Slack requests/events when LOGLEVEL is set to DEBUG

[DonDebonair]

No description provided.

[codecov]

Codecov Report

Merging #876 (6a6ebdc) into main (d941143) will decrease coverage by 0.10%.
The diff coverage is 69.23%.

❗ Current head 6a6ebdc differs from pull request most recent head e64bed2. Consider uploading reports for the commit e64bed2 to get more accurate results

@@            Coverage Diff             @@
##             main     #876      +/-   ##
==========================================
- Coverage   74.96%   74.86%   -0.10%     
==========================================
  Files          27       27              
  Lines        1338     1341       +3     
==========================================
+ Hits         1003     1004       +1     
- Misses        335      337       +2     

Files Changed	Coverage Δ
machine/core.py	76.76% <33.33%> (-0.90%)	⬇️
machine/handlers.py	90.90% <75.00%> (+0.13%)	⬆️
machine/clients/slack.py	65.93% <100.00%> (ø)