Added branch and revision fields to ImportGit API

[enrichman]

This PR adds the revision field to the ImportGit API response.

type ImportGitResponse struct {
	BlobUID  string `json:"blobuid,omitempty"`
	Branch   string `json:"branch,omitempty"`
	Revision string `json:"revision,omitempty"`
}

During the import we are going to resolve the exact revision, if not provided. This revision can be then used to fill the Origin.Git.Revision with the right value.

Fix: #2491

[codecov]

Codecov Report

Patch coverage: 84.37% and project coverage change: -0.32% ⚠️

Comparison is base (b075df2) 67.69% compared to head (18313bc) 67.38%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2487      +/-   ##
==========================================
- Coverage   67.69%   67.38%   -0.32%     
==========================================
  Files         184      184              
  Lines       15303    15325      +22     
==========================================
- Hits        10360    10326      -34     
- Misses       3918     3962      +44     
- Partials     1025     1037      +12     

Flag	Coverage Δ
acceptance-api	49.25% <81.25%> (-0.12%)	⬇️
acceptance-apps	38.35% <0.00%> (-0.18%)	⬇️
acceptance-cli	63.55% <50.00%> (-0.59%)	⬇️
unittests	13.23% <0.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
pkg/api/core/v1/models/models.go	100.00% <ø> (ø)
internal/api/v1/application/importgit.go	69.08% <83.87%> (+7.79%)	⬆️
internal/cli/usercmd/push.go	78.09% <100.00%> (-2.40%)	⬇️

... and 22 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.