Add containertiming to both v1 and v2 consent banners

As suggested by Erwin Hofman’s post on LinkedIn, we should add the containertiming to the managed templates of the soon to be available v2 consent banner and existing v1 consent banners of Consent Studio Web CMP.

Linkedin post:

https://www.linkedin.com/posts/erwinhofman_rum-containertiming-api-share-7460973030924652544-Bz46

Details:
https://github.com/WICG/container-timing

https://developer.chrome.com/blog/container-timing-origin-trial