Allow disabling submit buttons

[camertron]

What are you trying to accomplish?

In a recent PR, I removed the ability to disable submit buttons in the Primer forms framework. Unfortunately dotcom includes a use-case where I believe disabling the submit button is valid, so unfortunately the framework needs to allow it.

Integration

No changes necessary in production.

Risk Assessment

• Low risk the change is small, highly observable, and easily rolled back.
• Medium risk changes that are isolated, reduced in scope or could impact few users. The change will not impact library availability.
• High risk changes are those that could impact customers and SLOs, low or no test coverage, low observability, or slow to rollback.

Accessibility

• No new axe scan violation - This change does not introduce any new axe scan violations.

Merge checklist

• Added/updated tests

[changeset-bot]

🦋 Changeset detected

Latest commit: a3b7c1f

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

This PR includes changesets to release 1 package

Name	Type
@primer/view-components	Minor

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