fix: make sure existing modified permissions are not overwritten

[onehassan]

• [X] No breaking changes
• [X] Tests pass

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 6b72e99684db01056367842568db65bd6d2d59e0

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

This PR includes changesets to release 1 package

| Name | Type | | ----------- | ----- | | hasura-auth | Patch |

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR