Bump jerowork/graphql-attribute-schema from 0.6.3 to 0.6.4

Bumps [jerowork/graphql-attribute-schema](https://github.com/jerowork/graphql-attribute-schema) from 0.6.3 to 0.6.4.
- [Release notes](https://github.com/jerowork/graphql-attribute-schema/releases)
- [Commits](jerowork/graphql-attribute-schema@0.6.3...0.6.4)

---
updated-dependencies:
- dependency-name: jerowork/graphql-attribute-schema
  dependency-version: 0.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]