ci: prefer go-version-file option for actions/setup-go

[wheinze]

In order to automatically align the Go version with the one used in development, I would suggest to prefer the go-version-file option of the setup action, so the Go version does not need to be managed manually.

PS: It might be meaningful to think of introducing a test-matrix for .github/workflows/ci.yml, so the officially supported Go versions are checked. If this is something you consider to do, I'm willing to file a subsequent PR for this ;)

[jooola]

Thanks for the improvement, this change does make sens in the context of this project.

The CLI doesn't have the same go compatibility constraints as libraries, so I prefer not to introduce a test matrix for different version of go for now.

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (5a2dbb2) 45.94% compared to head (450a436) 45.98%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
internal/cmd/certificate/create.go	78.57%	2 Missing and 1 partial ⚠️
internal/cmd/network/create.go	50.00%	2 Missing and 1 partial ⚠️
internal/cmd/volume/create.go	50.00%	2 Missing and 1 partial ⚠️
internal/cmd/util/util.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #653      +/-   ##
==========================================
+ Coverage   45.94%   45.98%   +0.03%     
==========================================
  Files         171      171              
  Lines        7517     7514       -3     
==========================================
+ Hits         3454     3455       +1     
+ Misses       3623     3616       -7     
- Partials      440      443       +3     

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[wheinze]

The CLI doesn't have the same go compatibility constraints as libraries, so I prefer not to introduce a test matrix for different version of go for now.

Alright :)