Switch to after apply when setting up watches

[barney-s]

What this PR does / why we need it:
This change is to workaround a potential bug where we are setting up watches in a namespace that is not yet created by apply.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Additional documentation:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: barney-s
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[k8s-ci-robot]

@barney-s: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-declarative-test	b1dc310	link	true	/test pull-declarative-test

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[barney-s]

We are root causing the issue. Both Before and After apply should work