chore: Update references to track 3.0 on main

[mmkay]

Issue

Same as #434, but for main/latest.

Solution

Checklist

• I have added or updated relevant documentation.
• PR title makes an appropriate release note and follows conventional commits syntax.
• Merge target is the correct branch, and relevant tandem backport PRs opened.
• This PR has Terraform product changes and appropriate lifecycle args and moved blocks were added to the terraform/*/upgrades.tf file(s).
• This PR has breaking changes to the product API(s) and I have created an issue in SolQA pipelines to address this.

Context

Needed the terraform files from #381 ; I expect they'll eventually land on main together with the rest of the tests.

Testing Instructions

Upgrade Notes

[mmkay]

As discussed with @MichaelThamm - we want latest to point at the dev track. This PR is in this case not needed.