Linting option for CI jobs

[nghi-ly]

What are you changing in this pull request and why?

Beta docs for the new Linting option for CI jobs

• Update CI jobs page with new option and new prereq
• Update Continuous integration page with new "SQL Linting" section
• Add "beta" pills appropriately

Checklist

• [x] I have reviewed the Content style guide so my content adheres to these guidelines.
• [x] The topic I'm writing about is for specific dbt version(s) and I have versioned it according to the version a whole page and/or version a block of content guidelines.
• [x] Needs PM review

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Name	Status	Preview	Updated (UTC)
docs-getdbt-com	🛑 Canceled (Inspect)		Sep 25, 2024 3:50pm

[nghi-ly]

great sugg, mirna! folded them in with minor adjustments. thank you!