build(deps-dev): bump @pinia/testing from 1.0.2 to 1.0.3

Bumps [@pinia/testing](https://github.com/vuejs/pinia) from 1.0.2 to 1.0.3.
- [Release notes](https://github.com/vuejs/pinia/releases)
- [Commits](https://github.com/vuejs/pinia/compare/@pinia/[email protected]...@pinia/[email protected])

---
updated-dependencies:
- dependency-name: "@pinia/testing"
  dependency-version: 1.0.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]