Bump fast-xml-parser and @aws-sdk/client-cloudformation

Bumps [fast-xml-parser](https://github.com/NaturalIntelligence/fast-xml-parser) to 5.3.4 and updates ancestor dependency [@aws-sdk/client-cloudformation](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-cloudformation). These dependencies need to be updated together.


Updates `fast-xml-parser` from 4.4.1 to 5.3.4
- [Release notes](https://github.com/NaturalIntelligence/fast-xml-parser/releases)
- [Changelog](https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/CHANGELOG.md)
- [Commits](NaturalIntelligence/fast-xml-parser@v4.4.1...v5.3.4)

Updates `@aws-sdk/client-cloudformation` from 3.621.0 to 3.984.0
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-cloudformation/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.984.0/clients/client-cloudformation)

---
updated-dependencies:
- dependency-name: fast-xml-parser
  dependency-version: 5.3.4
  dependency-type: indirect
- dependency-name: "@aws-sdk/client-cloudformation"
  dependency-version: 3.984.0
  dependency-type: direct:production
...

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Author: dependabot[bot]