Update knative version to 1.9

[anshalshukla]

Summary

Regular Update. Updated the knative version.

[ustiugov]

@anshalshukla have you tested it with the workflow from the quickstart guide (with Firecracker and with containers)? Once you are done with testing, please ask @shyamjesal for a review.

[ustiugov]

I noticed that the wiki page by Shyam doesn't really say about which repo and branch of serving one needs to take. @shyamjesal, could you please clarify this on the wiki page?

One needs to copy and rebase the following branch in our fork of Knative: ease-lab/serving#8

[shyamjesal]

Yes, that branch is correct, we need to update that branch and add the generated yamls. Wiki updated.

[ustiugov]

@anshalshukla please follow the updated wiki

[anshalshukla]

Sure, I'll do it today

[anshalshukla]

@shyamjesal I've updated the PR with the suggested branch and have also tested the workflows from quickstart guide.

[ustiugov]

@shyamjesal wait a bit. Anshal needs to rebase the copied branch first.

[ustiugov]

@anshalshukla any updates on this PR?

[anshalshukla]

Updated knative using this branch. Tested the workflows and it works fine.