fix(cluster): remove Free label and add Beta tooltip on add-ons

[acarranoqovery]

Summary

• Remove the "Free" green badge from KEDA autoscaler and secret manager integration add-ons in both the cluster settings page and cluster creation flow
• Make the badge prop optional on AddonToggleCard with a null-guard in the render
• Add a tooltip on the "Beta" badge for secret manager integration: "This feature is in beta. Behaviour and accessibility may change when released in GA."
• Fix test setup in step-addons.spec.tsx to include TooltipProvider in the wrapper (required by Radix Tooltip)

[RemiBonnet]

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 46.44%. Comparing base (4f20e6e) to head (1fce2f5).
⚠️ Report is 6 commits behind head on staging.

Files with missing lines	Patch %	Lines
...ature/src/lib/cluster-addons/addon-toggle-card.tsx	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #2749      +/-   ##
===========================================
+ Coverage    45.97%   46.44%   +0.47%     
===========================================
  Files         1150      751     -399     
  Lines        24806    19042    -5764     
  Branches      7384     5789    -1595     
===========================================
- Hits         11404     8844    -2560     
+ Misses       11405     8591    -2814     
+ Partials      1997     1607     -390     

Flag	Coverage Δ
unittests	46.44% <0.00%> (+0.47%)	⬆️

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[rmnbrd]

Looks good to me ✅

[RemiBonnet]

🎉 This PR is included in version 1.315.0 🎉

The release is available on GitHub release

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