Add security audit report and blogpost

[AdamKorcz]

Adds the Knative security audit report and blogpost.

cc @davidhadas @evankanderson

[netlify[bot]]

✅ Deploy Preview for knative ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	b93cf114252ba04282d8a238cec99513350f7979
🔍 Latest deploy log	https://app.netlify.com/sites/knative/deploys/656e5ca09f9afa00087cae14
😎 Deploy Preview	https://deploy-preview-5775--knative.netlify.app/blog/events/security-audit-2023
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[ReToCode]

PTAL:

/assign @evankanderson /assign @davidhadas

[AdamKorcz]

There are typos in the PDF.

eg. under thread modelling you have 'Knative Serving' but then the paragraphs > under neath it talk about Knative Eventing

Then under the Knative Serving section there are phrases like Knative Eventing will > autoscale - but it should be 'Knative Serving'

Thanks for catching that. Should now be fixed with the latest report.

[davidhadas]

/lgtm

[evankanderson]

(Other than the comments on our builds not being done via GitHub Actions, this LGTM.)

[evankanderson]

(If you're willing to accept the two strikeouts on provenance information, I'm willing to publish this.)

[AdamKorcz]

@evankanderson PTAL

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AdamKorcz, evankanderson

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: - ~~[OWNERS](https://github.com/knative/docs/blob/main/OWNERS)~~ [evankanderson] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment