KF 1.9 release: fix date and link to video

[tarilabs]

1. fix the release date,
   ref: https://github.com/kubeflow/manifests/releases/tag/v1.9.0
   as noticed by @thesuperzapper

2. link to Kubeflow 1.9 Release Update youtube video

👉 if the PR is approved, I will update the video from Unlisted -> Published

@kubeflow/release-team @rimolive @StefanoFioravanzo @andreyvelich @hbelmiro @jbottum @juliusvonkohout

[rimolive]

Thank you Matteo for working in the release video!

/lgtm

[hbelmiro]

Thank you @tarilabs.
/lgtm

[thesuperzapper]

@tarilabs In the interest of fixing the incorrect date while we wait for the video to be ready (we need to upload the video to the Kubeflow channel before we publish, not the Kubeflow Community), I have raised a separate PR to only fix the date:

• Fix Kubeflow 1.9 release date #3840

[tarilabs]

can this be approved, please? the video link is indeed referring to the video on the main Kubeflow channel.

unrelated, this:

• YouTube Kubeflow (main) channel: owner? community#745

[andreyvelich]

Thanks for this update @tarilabs!
/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andreyvelich

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• content/en/docs/releases/OWNERS [andreyvelich]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment