Remove --default-profile in favor of automatic platform detection

[luksa]

Fixes #351

When the operator detects that it's running on OpenShift, it sets the default profile to "openshift".

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 27 lines in your changes missing coverage. Please review.

Project coverage is 57.44%. Comparing base (4af5c27) to head (3515cdc).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/config/platform.go	0.00%	16 Missing ⚠️
cmd/main.go	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #434      +/-   ##
==========================================
- Coverage   59.56%   57.44%   -2.12%     
==========================================
  Files          34       35       +1     
  Lines        1657     2061     +404     
==========================================
+ Hits          987     1184     +197     
- Misses        618      825     +207     
  Partials       52       52              

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[sridhargaddam]

This is failing on Kind clusters.

sail-operator 2024-10-17T16:56:45Z    INFO    setup    version.BuildInfo{Version:"0.2.0", GitRevision:"bfe3fa673529023e9d1035ec87740c167d230fbd", BuildStatus:"Modified", GitTag:"unknown", GoVersion:"go1.23.2", GoArch:"linux/amd64", ControllerRuntime:"v0.19.0"}
sail-operator 2024-10-17T16:56:45Z    INFO    setup    reading config
sail-operator 2024-10-17T16:56:45Z    INFO    setup    config loaded    {"config": {"ImageDigests":{}}}
sail-operator 2024-10-17T16:56:45Z    ERROR    setup    unable to detect platform    {"error": "the server could not find the requested resource"}
sail-operator main.main
sail-operator     ./main.go:129
sail-operator runtime.main
sail-operator     runtime/proc.go:272

[luksa]

Thanks! Fixed. (I think)