[enterprise-4.20] MIG-1755: MTC 1.8.9 release notes

[openshift-cherrypick-robot]

This is an automated cherry-pick of #97371

/assign shdeshpa07

[openshift-ci-robot]

@openshift-cherrypick-robot: Ignoring requests to cherry-pick non-bug issues: MIG-1755

In response to this:

This is an automated cherry-pick of #97371

/assign shdeshpa07

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[openshift-ci]

@openshift-cherrypick-robot: all tests passed!

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[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale.
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Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[openshift-merge-robot]

PR needs rebase.

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