[test] Add Cilium BGP LB e2e test

[komer3]

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[AshleyDumaine]

I'm wondering if we make the bgp stuff configurable in https://github.com/linode/linode-cloud-controller-manager/blob/main/deploy/generate-manifest.sh then we don't have to do this patching. That's probably worth adding since right now the raw manifest needs to be manually edited versus setting the options in the helm chart.

[komer3]

Hmm so we would regen the manifest with bgp enabled and apply the patches?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.62%. Comparing base (1b2351c) to head (738fb4b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #290   +/-   ##
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  Coverage   70.62%   70.62%           
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  Files          11       11           
  Lines        2172     2172           
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  Hits         1534     1534           
  Misses        488      488           
  Partials      150      150           

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