Bump spin from 0.12.0 to 0.12.1

Bumps spin from 0.12.0 to 0.12.1.

---
updated-dependencies:
- dependency-name: spin
  dependency-version: 0.12.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]