Add edit command to update the meta of an incident

[jennafauconnier]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 56.89655% with 25 lines in your changes missing coverage. Please review.

Project coverage is 62.82%. Comparing base (7fbaea4) to head (fac7d99).

Files with missing lines	Patch %	Lines
src/firefighter/slack/views/modals/edit.py	50.00%	19 Missing and 1 partial ⚠️
src/firefighter/incidents/models/incident.py	60.00%	2 Missing ⚠️
src/firefighter/slack/views/events/commands.py	0.00%	2 Missing ⚠️
src/firefighter/incidents/forms/edit.py	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #96      +/-   ##
==========================================
+ Coverage   62.80%   62.82%   +0.02%     
==========================================
  Files         213      215       +2     
  Lines        9431     9485      +54     
  Branches     1276     1285       +9     
==========================================
+ Hits         5923     5959      +36     
- Misses       3300     3317      +17     
- Partials      208      209       +1     

Flag	Coverage Δ
unittests	62.82% <56.89%> (+0.02%)	⬆️

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