Support for root certificate rotation via CLI

[jsturtevant]

Description:
This build on #5201 (required before this) to provide alpha support for rotation in the CLI. This is a proposal for adding a command to ease the burden of managing the MRCs and adds several tests for trust domain and switching between providers.

example usage would be:

./bin/osm alpha certificate rotate -d -y

Resolves #4835

Testing done:

Affected area:

Functional Area
New Functionality	[ ]
CI System	[ ]
CLI Tool	[ ]
Certificate Management	[ ]
Control Plane	[ ]
Demo	[ ]
Documentation	[ ]
Egress	[ ]
Ingress	[ ]
Install	[ ]
Networking	[ ]
Observability	[ ]
Performance	[ ]
SMI Policy	[ ]
Security	[ ]
Sidecar Injection	[ ]
Tests	[ ]
Upgrade	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?

   • Did you notify the maintainers and provide attribution?

2. Is this a breaking change?

3. Has documentation corresponding to this change been updated in the osm-docs repo (if applicable)?

[jsturtevant]

This also partially addresses #5207, which was needed to be able to test rotation to vault from other providers.

[jaellio]

Do we have any other OSM CLI commands that we would characterize as "alpha" or could "preview" just be added in a warning for the command's help and output?

[jsturtevant]

good question, I am up for either and easy change to make. I modeled it after kubectl alpha which I like because it is very clear that is experimental when using it.

[jaellio]

I like this approach, but I am curious to see what other maintainers think.

[codecov-commenter]

Codecov Report

Merging #5207 (abbcdb2) into main (e9ee46f) will decrease coverage by 0.94%.
The diff coverage is 20.79%.

@@            Coverage Diff             @@
##             main    #5207      +/-   ##
==========================================
- Coverage   70.30%   69.35%   -0.95%     
==========================================
  Files         195      198       +3     
  Lines       15697    15994     +297     
==========================================
+ Hits        11035    11093      +58     
- Misses       4607     4844     +237     
- Partials       55       57       +2     

Flag	Coverage Δ
unittests	69.35% <20.79%> (-0.95%)	⬇️

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

Impacted Files	Coverage Δ
cmd/cli/certificate_rotate.go	13.81% <13.81%> (ø)
cmd/cli/alpha.go	72.72% <72.72%> (ø)
cmd/cli/certificate.go	100.00% <100.00%> (ø)
cmd/cli/osm.go	81.03% <100.00%> (+0.33%)	⬆️
pkg/certificate/providers/config.go	79.51% <100.00%> (ø)
pkg/certificate/manager.go	87.55% <0.00%> (+0.41%)	⬆️

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