fix(deployments): support commas in values for deploy parameters

[ecrupper]

urfave CLI does not support maps natively, and so KV pairs supplied cannot contain any commas or the library will consider that a separator for the StringSlice type.

I've seen some code in the urfave library that suggests v3 might contain support for this?

Either way, a file type input solves this and I also think it's useful in other regards.

[codecov]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (c8476c7) 82.40% compared to head (f91caa7) 82.23%.
Report is 1 commits behind head on main.

❗ Current head f91caa7 differs from pull request most recent head fb5712a. Consider uploading reports for the commit fb5712a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #526      +/-   ##
==========================================
- Coverage   82.40%   82.23%   -0.18%     
==========================================
  Files         147      147              
  Lines        3580     3602      +22     
==========================================
+ Hits         2950     2962      +12     
- Misses        466      473       +7     
- Partials      164      167       +3     

Files	Coverage Δ
action/deployment/add.go	91.30% <100.00%> (-2.99%)	⬇️
command/deployment/add.go	78.18% <71.42%> (-12.30%)	⬇️