Add Azure Data Explorer e2e tests with active directory credentials.

[v-shenoy]

Relates to #2770, #2882.

[tomkerkhove]

Make sure to check #2822 (review) as we need #2741 instead of #2882

/cc @kedacore/keda-maintainers

[v-shenoy]

@tomkerkhove I wasn't planning on enabling the pod identity tests here. Instead of having all e2e tests disabled for Data Explorer, I was going to add a condition to disable only the ones using pod identity (as I can see there is already one using AD credentials). This ensures that we at least have some tests running for Data Explorer that we can check on PRs. The condition can then be removed once #2741 is merged.

[v-shenoy]

Should I wait until #2741 is merged before working on this?

[tomkerkhove]

@tomkerkhove I wasn't planning on enabling the pod identity tests here. Instead of having all e2e tests disabled for Data Explorer, I was going to add a condition to disable only the ones using pod identity (as I can see there is already one using AD credentials). This ensures that we at least have some tests running for Data Explorer that we can check on PRs. The condition can then be removed once #2741 is merged.

This sounds like a good plan to me!