Update knative-serving

[davidesalerno]

Motivation

chore: The purpose of this pull request is to addres this vulnerability.
In the Snyk report it says that the version 0.39.3 still affected, however it seems to be a false positive, since the fix can be found merged
as this commit shows.

Modifications

Result

PR checklist

Checklist items below are applicable for development targeted to both fast and stable branches/tags

• Unit tests pass locally
• FVT tests pass locally
• If the PR adds a new container image or updates the tag of an existing image (not build within cpaas), is the corresponding change made in live-builder and cpaas-midstream to add/update the image tag in the operator CSV? Link the PRs if applicable

Checklist items below are applicable for development targeted to both fast and stable branches/tags

• Tested modelmesh serving deployment with odh-manifests and ran odh-manifests-e2e tests locally

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: davidesalerno
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