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

Bumps [fast-xml-parser](https://github.com/NaturalIntelligence/fast-xml-parser) to 4.4.1 and updates ancestor dependency [@aws-sdk/client-ecs](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-ecs). These dependencies need to be updated together.


Updates `fast-xml-parser` from 4.2.5 to 4.4.1
- [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@v4.2.5...v4.4.1)

Updates `@aws-sdk/client-ecs` from 3.454.0 to 3.621.0
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-ecs/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.621.0/clients/client-ecs)

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

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

Author: dependabot[bot]