feat(core): add dry-run flag

[RitaDias]

Description

Add dry-run flag as an option when running sanity graphql deploy

What to review

To test:

• Running sanity graphql deploy --dry-run will not deploy anything
  • It won't ask for the playground and, if there are conflicts, will not confirm that you want to deploy
• Running sanity graphql deploy will work exactly as before
• Do breaking changes to the schema. When running with the dry-run flag you should have a list of the changes and you won't be prompted about deploying with breaking changes

Notes for release

Add dry-run flag as an option when running sanity graphql deploy

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perf-studio – ./

🔍 Inspect: https://vercel.com/sanity-io/perf-studio/6gn3unkpfEH3LqxZ4SYjRHWWHNKW
✅ Preview: https://perf-studio-git-feat-cli-select-organization.sanity.build

test-studio – ./

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✅ Preview: https://test-studio-git-feat-cli-select-organization.sanity.build

studio-workshop – ./dev/workshop

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✅ Preview: https://studio-workshop-git-feat-cli-select-organization.sanity.build

[rexxars]

Looks good!