✨ OPRUN-4150: Relax webhook support preconditions

[perdasilva]

Description

In OLMv0, only bundles with conversion webhooks must only support AllNamespaces install mode. In the initial implementation of the v1 support, we temporarily extended this to all webhook types. This PR brings v1 inline with v0 webhook support.

The PR also adds the CheckConversionWebhookSupport to the validator (which should have been done originally, but seems to have slipped)

Reviewer Checklist

• API Go Documentation
• Tests: Unit Tests (and E2E Tests, if appropriate)
• Comprehensive Commit Messages
• Links to related GitHub Issue(s)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.22%. Comparing base (27b05e7) to head (362b58e).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2222      +/-   ##
==========================================
+ Coverage   72.17%   72.22%   +0.04%     
==========================================
  Files          85       85              
  Lines        8407     8422      +15     
==========================================
+ Hits         6068     6083      +15     
  Misses       1939     1939              
  Partials      400      400              

Flag	Coverage Δ
e2e	39.16% <12.50%> (+0.03%)	⬆️
experimental-e2e	46.32% <62.50%> (+0.17%)	⬆️
unit	57.08% <100.00%> (+0.07%)	⬆️

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[tmshort]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: camilamacedo86, pedjak, tmshort

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