Simplify rules for package-and-test-ee and trigger-omnibus-env

What does this MR do and why?

Simplify rules for package-and-test-ee and trigger-omnibus-env

This is based on:

• Use allow_failure: true on the job so that we don't mess with rules
• Use the same rules for both because manual actions are done by the other means, and we no longer need to mix the rules with manual vs automated one.

This also drops rules around if-force-ci because it should not be used

This is a follow up from !147908 (merged) and see #452508 (closed)

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Related to #452508 (closed)