Volume and csi-proxy-api-gen E2E tests are skipped in github actions

[mauriciopoppe]

What happened:
Some E2E tests are skipped if the test detects that it's running inside a Github Action workflow

• csi-proxy/integrationtests/volume_test.go

  Line 373 in c249530

  skipTestOnCondition(t, isRunningOnGhActions())

• csi-proxy/integrationtests/csi_api_gen_test.go

  Line 21 in c249530

  skipTestOnCondition(t, isRunningOnGhActions())

What you expected to happen:
E2E tests shouldn't be skipped, it makes it hard to iterate if you don't know what you broke

How to reproduce it:
Comment the line

csi-proxy/integrationtests/volume_test.go

Line 373 in c249530

skipTestOnCondition(t, isRunningOnGhActions())

and send a PR that triggers the presubmit job, there's a powershell command that fails because Hyper-V is disabled.

See https://github.com/kubernetes-csi/csi-proxy/runs/2605742614?check_suite_focus=true for an example

Anything else we need to know?:
There are some commands that can't run in the Github Actions VM because it has hyper-V disabled, this feature was disabled in actions/runner-images#2525 and it looks like it's not coming back.

[mauriciopoppe]

The generator test isn't working at all, the generator can execute correctly but the test to take diffs between the actual and the desired generated states isn't correct, also the generator desired files are out of date.

[mauriciopoppe]

We decided that it's ok to run the E2E tests manually for now, also because the generator is out of date we are no longer running this test either. (ref #138)