rename remaining test files in `event-publisher-proxy`

[friedrichwilken]

renamed all remaining test files from _test.go to _unit_test.go or integration_test.go accordingly. All test files in event-publisher-proxy should follow this naming pattern now.

[friedrichwilken]

/retest

[friedrichwilken]

/test pre-main-kyma-gardener-gcp-eventing-upgrade

[raypinto]

whats the difference between integration test and component test?

[friedrichwilken]

@raypinto the handler_health_test.go in both are renamed to handler_health_unit_test.go because they indeed do the same. however health_test.go in nats was renamed to health_interation_test.go. I gave it another look and I agree, this is a unit test. so I just changed it to health_unit_test.go.

[friedrichwilken]

/test pre-main-kyma-gardener-gcp-eventing-upgrade

[kyma-bot]

New changes are detected. LGTM label has been removed.

[friedrichwilken]

/retest

[friedrichwilken]

This is blocked for now, since #15672 might do the same things anyhow.

[friedrichwilken]

/retest

[kyma-bot]

@friedrichwilken: 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
pre-main-kyma-skr-eventing	4d7228a1f661f99aaaae82363f8578fd384b4d3b	link	false	/test pre-main-kyma-skr-eventing

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