Bump Azure.Identity from 1.2.0 to 1.2.1
Bump Azure.Identity from 1.2.0 to 1.2.1

Bumps [Azure.Identity](https://github.com/Azure/azure-sdk-for-net) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](https://github.com/Azure/azure-sdk-for-net/compare/Azure.Identity_1.2.0...Azure.Identity_1.2.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
onovotny/SignService,onovotny/SignService,onovotny/SignService