refactor: update resource manager tag references

[modular-magician]

Part 2:

Update resource manager tag references in terraform code templates for generated tests (also some minor formatting changes)

• Update the code to use foo.id vs "tagKeys/${foo.name}" or "tagValues/${foo.name}"
• Update some project data source references to project.id vs projects/.....number
• Wrap map keys in parens where needed.

Followup to #12118

Release Note Template for Downstream PRs (will be copied)

See Write release notes for guidance.

Derived from GoogleCloudPlatform/magic-modules#12132