feat(slack-bot): add uptime pipeline failure notifications to Slack

[gaprl]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.25%. Comparing base (4fdb63b) to head (8d2e251).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #921   +/-   ##
=======================================
  Coverage   89.25%   89.25%           
=======================================
  Files         123      123           
  Lines        3805     3816   +11     
  Branches      775      763   -12     
=======================================
+ Hits         3396     3406   +10     
- Misses        375      396   +21     
+ Partials       34       14   -20     

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