Update dependency slack to v5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
slack	orb	major	4.13.3 -> 5.1.1

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.32%. Comparing base (ece6c25) to head (adb92c6).
Report is 42 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10023      +/-   ##
==========================================
- Coverage   64.32%   64.32%   -0.01%     
==========================================
  Files         656      656              
  Lines       63037    63037              
  Branches     6990     6989       -1     
==========================================
- Hits        40551    40546       -5     
- Misses      22486    22491       +5     

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