fix parenthesis preventing keda ScaledObject creation

[dstandish]

fix placement of parentheses in keda autoscaler template so that keda scaledobject is created when enabled

adds simple test to verify that keda object is created under right circumstances (though not all permutations covered)

to do so, had to make schema validation optional cus the existing validator could not find schema. maybe this is cus it's a custom resource def? @dimberman maybe you know?

closes: #13181

[mik-laj]

to do so, had to make schema validation optional cus the existing validator could not find schema. maybe this is cus it's a custom resource def? @dimberman maybe you know?

Disabling schema validation only for a few exceptional cases, I think is a good solution. We will have to be more careful in our reviews, but if it's not frequent, that's not a problem.

If this is a problem then we will have to implement support for CRDs that have JSON Schema specifications, but this is an extra effort. We can do it later if needed.
https://github.com/kedacore/keda/blob/main/config/crd/bases/keda.sh_scaledobjects.yaml

[dstandish]

@mik-laj thanks for taking a look

i realized i had forgotten to commit the tests I added! (just pushed)

previously there were no tests related to keda (which is how this bug was able to stay hidden)

so with this change at least we test the "should we create keda objects" condition.