Fix warning ARCH typo

[jrschumacher]

Description

The warning informing users when to use arch vs archs had a typo.

Related Issue(s)

Checklist

• [ ] This PR includes a documentation change

• [x] This PR does not need a documentation change

• [ ] This PR includes test changes

• [x] This PR's changes are already tested

• [ ] This change is not user-facing
• [x] This change is a patch change
• [ ] This change is a minor change
• [ ] This change is a major (breaking) change

Changes made

• src/utils.ts (warning message)

[divyansh42]

@jrschumacher could you please run npm run bundle command so that bundles get updated. Thanks!