fix: up tasklist timeoutSeconds to 5

[jessesimpson36]

Which problem does the PR fix?

fixes #2386

What's in this PR?

We found that tasklist takes about 1.6 seconds to return a response to it's readinessProbe endpoint, so this PR will up the timeoutSeconds to accommodate for the extra time necessary.

Checklist

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[hisImminence]

lgtm! Thanks @jessesimpson36 and @hamza-m-masood!