chore(deps): bump @azure/identity from 1.2.5 to 4.8.0

Bumps [@azure/identity](https://github.com/Azure/azure-sdk-for-js) from 1.2.5 to 4.8.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-js/releases)
- [Changelog](https://github.com/Azure/azure-sdk-for-js/blob/main/documentation/Changelog-for-next-generation.md)
- [Commits](https://github.com/Azure/azure-sdk-for-js/compare/@azure/identity_1.2.5...@azure/identity_4.8.0)

---
updated-dependencies:
- dependency-name: "@azure/identity"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]