Add component test for checking lack of sidecars in kube-system

[cnvergence]

Description

Changes proposed in this pull request:

• small fixes to the eval istio test
• checking that existing pods and newly deployed httpbin in kube-system
  don't have istio sidecars

Related issue(s)

• [Istio] implement component test for Istio checking lack of sidecars in kube-system #14258

[kyma-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[netlify]

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[kyma-bot]

@cnvergence: The following tests 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-kyma-tests-components-application-connector	19354eb	link	true	/test pre-kyma-tests-components-application-connector
pre-main-kyma-integration-k3d-istio-evaluation	28fa6b1	link	false	/test pre-main-kyma-integration-k3d-istio-evaluation
pre-main-kyma-integration-k3d-istio-production	28fa6b1	link	false	/test pre-main-kyma-integration-k3d-istio-production

Full PR test history. Your PR dashboard.

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[cnvergence]

/test all