MCPRegistry e2e tests

[dmartinol]

First bunch of tests to address #1749
It also depends on #2016 which should be committed first

• Fixes never-ending reconciliation loop by comparing the status fields instead of always updating the updated status (this would cause an immediate reconciliation)
• Adds a test/e2e/operator/registry_lifecycle_test.go initial test to prove the capabilities of ginkgo as the testing framework for orchestrated workflows

Questions to be answered:

• Where do we keep this files, is the current location suitable?
• Should we call them from the operator-e2e-test task?

[codecov]

Codecov Report

❌ Patch coverage is 60.68376% with 46 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.28%. Comparing base (43b1efb) to head (07453c4).

Files with missing lines	Patch %	Lines
cmd/thv-operator/pkg/sync/manager.go	62.24%	25 Missing and 12 partials ⚠️
...md/thv-operator/pkg/mcpregistrystatus/collector.go	47.05%	7 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2017      +/-   ##
==========================================
- Coverage   48.31%   48.28%   -0.03%     
==========================================
  Files         238      238              
  Lines       29952    30025      +73     
==========================================
+ Hits        14472    14499      +27     
- Misses      14380    14418      +38     
- Partials     1100     1108       +8     

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[dmartinol]

I've added more tests covering most of the sync, data sources and filtering options and workflows.
I think it should be enough for now, especially if we're going to plan for some extensive review of the controller, like moving some of the functions to the thv-registryapi` service.