Remove beta tabs/callouts for CI phase 2

[nghi-ly]

What are you changing in this pull request and why?

For the CI phase 2 GA, remove related beta callouts and beta tabs

• Updated CI jobs page: https://docs.getdbt.com/docs/deploy/ci-jobs
• Updated Deploy jobs page: https://docs.getdbt.com/docs/deploy/deploy-jobs
• Updated Jobs page: https://docs.getdbt.com/docs/deploy/jobs
• Updated guide on CI setup: https://docs.getdbt.com/guides/orchestration/set-up-ci/overview
• Updated release note to include a new section "What you need to update"

Checklist

• Review the Content style guide and About versioning so my content adheres to these guidelines.
• Needs review from product team

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[thorn14]

Looks good to me.

We may need to add some additional notes or recommendations but I do not believe that should ultimately be a blocker here.