feat: allow scheduler slot duration of 5 min

[maze-runnar]

Fixes #5345

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

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[codecov]

Codecov Report

Merging #5346 into development will increase coverage by 0.05%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #5346      +/-   ##
===============================================
+ Coverage        22.78%   22.84%   +0.05%     
===============================================
  Files              491      491              
  Lines             5245     5245              
  Branches            37       37              
===============================================
+ Hits              1195     1198       +3     
+ Misses            4045     4042       -3     
  Partials             5        5              

Impacted Files	Coverage Δ
app/models/event.js	50.00% <0.00%> (+18.75%)	⬆️

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[iamareebjamal]

Thanks @maze-runnar