Bump the main-dependencies group across 1 directory with 4 updates

Bumps the main-dependencies group with 4 updates in the / directory: [azure-identity](https://github.com/Azure/azure-sdk-for-python), [boto3](https://github.com/boto/boto3), [pydantic](https://github.com/pydantic/pydantic) and [pydantic-settings](https://github.com/pydantic/pydantic-settings).


Updates `azure-identity` from 1.16.1 to 1.17.1
- [Release notes](https://github.com/Azure/azure-sdk-for-python/releases)
- [Changelog](https://github.com/Azure/azure-sdk-for-python/blob/main/doc/esrp_release.md)
- [Commits](Azure/azure-sdk-for-python@azure-identity_1.16.1...azure-identity_1.17.1)

Updates `boto3` from 1.34.126 to 1.34.140
- [Release notes](https://github.com/boto/boto3/releases)
- [Commits](boto/boto3@1.34.126...1.34.140)

Updates `pydantic` from 2.7.4 to 2.8.2
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.7.4...v2.8.2)

Updates `pydantic-settings` from 2.3.3 to 2.3.4
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.3.3...v2.3.4)

---
updated-dependencies:
- dependency-name: azure-identity
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: main-dependencies
- dependency-name: boto3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: main-dependencies
- dependency-name: pydantic
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: main-dependencies
- dependency-name: pydantic-settings
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: main-dependencies
...

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