deps: bump the smithy group across 1 directory with 2 updates

Bumps the smithy group with 2 updates in the / directory: [@smithy/service-error-classification](https://github.com/awslabs/smithy-typescript/tree/HEAD/packages/service-error-classification) and [@smithy/shared-ini-file-loader](https://github.com/awslabs/smithy-typescript/tree/HEAD/packages/shared-ini-file-loader).


Updates `@smithy/service-error-classification` from 2.1.5 to 4.0.1
- [Release notes](https://github.com/awslabs/smithy-typescript/releases)
- [Changelog](https://github.com/smithy-lang/smithy-typescript/blob/main/packages/service-error-classification/CHANGELOG.md)
- [Commits](https://github.com/awslabs/smithy-typescript/commits/@smithy/[email protected]/packages/service-error-classification)

Updates `@smithy/shared-ini-file-loader` from 2.4.0 to 4.0.1
- [Release notes](https://github.com/awslabs/smithy-typescript/releases)
- [Changelog](https://github.com/smithy-lang/smithy-typescript/blob/main/packages/shared-ini-file-loader/CHANGELOG.md)
- [Commits](https://github.com/awslabs/smithy-typescript/commits/@smithy/[email protected]/packages/shared-ini-file-loader)

---
updated-dependencies:
- dependency-name: "@smithy/service-error-classification"
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: smithy
- dependency-name: "@smithy/shared-ini-file-loader"
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: smithy
...

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

Author: dependabot[bot]