feat: add support for v1beta1 cluster API

[michaelawyu]

What type of PR is this?

/kind feature

What this PR does / why we need it:

This PR adds support for v1beta1 cluster API to the repo.

It also updates the charts + applies other minor changes necessary.

Which issue(s) this PR fixes:

N/A

Requirements:

• run make reviewable for basic local test
• Read and followed fleet-networking's Code of conduct.
• uses conventional commit messages
• [N/A] includes documentation
• adds unit tests

How has this code been tested

• Unit tests
• Integration tests

Special notes for your reviewer

[michaelawyu]

Due to version conflicts, checks for this PR will not pass until the Go version is bumped.

[codecov]

Codecov Report

Merging #157 (3cd8b62) into main (248b683) will decrease coverage by 1.44%.
The diff coverage is 63.81%.

@@            Coverage Diff             @@
##             main     #157      +/-   ##
==========================================
- Coverage   79.05%   77.61%   -1.44%     
==========================================
  Files          21       22       +1     
  Lines        2759     2899     +140     
==========================================
+ Hits         2181     2250      +69     
- Misses        459      514      +55     
- Partials      119      135      +16     

Files Changed	Coverage Δ
...ember/internalmembercluster/v1alpha1/controller.go	68.18% <ø> (ø)
.../controllers/hub/endpointsliceexport/controller.go	69.77% <50.00%> (ø)
...nternalmembercluster/v1beta1/controller_v1beta1.go	65.00% <65.00%> (ø)

... and 6 files with indirect coverage changes