Bump @aws-sdk/client-appsync from 3.990.0 to 3.995.0

Bumps [@aws-sdk/client-appsync](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-appsync) from 3.990.0 to 3.995.0.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-appsync/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.995.0/clients/client-appsync)

---
updated-dependencies:
- dependency-name: "@aws-sdk/client-appsync"
  dependency-version: 3.995.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]