[HOLD] ⚠️ Bump ClusterExtension API to v1

[perdasilva]

Description

• Updates ClusterExtension to v1
• Adds operatorsv1alpha1 package alias for operators/v1alpha1
• Does NOT update to catalogd v1 (as that's not merged or released yet)

Closes #1155

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

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 76.42%. Comparing base (5097435) to head (88f4d40).

Files with missing lines	Patch %	Lines
internal/contentmanager/sourcerer.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1228   +/-   ##
=======================================
  Coverage   76.42%   76.42%           
=======================================
  Files          41       41           
  Lines        2431     2431           
=======================================
  Hits         1858     1858           
  Misses        400      400           
  Partials      173      173           

Flag	Coverage Δ
e2e	58.45% <80.00%> (ø)
unit	53.68% <0.00%> (-0.05%)	⬇️

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[perdasilva]

@yashoza19 I just saw that you had your name down on the ticket to bump the API. I was on a bit of rampage today and didn't notice and went ahead and did it. I'm sorry about that. If it's helpful, please take what I've done here, otherwise, I'm happy to close. Apologies again =(

[yashoza19]

@yashoza19 I just saw that you had your name down on the ticket to bump the API. I was on a bit of rampage today and didn't notice and went ahead and did it. I'm sorry about that. If it's helpful, please take what I've done here, otherwise, I'm happy to close. Apologies again =(

@perdasilva No worries at all. I was holding this issue off until we are done with all the other issues in epic-v1.

[LalatenduMohanty]

/hold