Add --dry-run flag to wrangler setup and also a dryRun option to runAutoConfig

[dario-piotrowicz]

Fixes https://jira.cfdata.org/browse/DEVX-2315

This PR adds a --dry-run option to wrangler setup so that users can run wrangler setup --dry-run knowing that no local changes will actually be applied.

It also adds a dryRun option to the runAutoConfig function that can be used to programmatically run the autoconfig flow in dry-run mode.

---

• Tests
  • Tests included
  • Tests not necessary because:
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: documentation will be worked on separately
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: wrangler setup and autoconfig are not in v3

[changeset-bot]

🦋 Changeset detected

Latest commit: e6507ae

The changes in this PR will be included in the next version bump.

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commit: e6507ae

[penalosa]

Apologies, this is going to have horrific merge conflicts with #11251

[dario-piotrowicz]

Apologies, this is going to have horrific merge conflicts with #11251

yeah... 😅 🥲