fix: add loading state to ButtonGroup

[ItsMeBrianD]

Description

Checklist

• [ ] For UI or styling changes, I have added a screenshot or gif showing before & after
• [ ] I have added a changeset
• [ ] I have added to the docs where applicable
• [ ] I have added to the VS Code extension where applicable

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: b3e10dac61e832b7cf93a100fb383fddf035b376

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

This PR includes changesets to release 5 packages

| Name | Type | | ----------------------------- | ----- | | @evidence-dev/core-components | Patch | | @evidence-dev/evidence | Patch | | my-evidence-project | Patch | | @evidence-dev/components | Patch | | evidence-test-environment | Patch |

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