migrate from adal to azidentity for Azure kms

[sp98]

Is this a BUG REPORT or FEATURE REQUEST?:
FEATURE REQUEST

What happened:
adal is out of support since March 31, 2023.
This PR migrates from adal to azidentity for azure key vault.
Migration guide was used as a reference.

What you expected to happen:
Ability to use azidentity library

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• Container Orchestrator and version:
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Others:

[sp98]

@adityadani Hello, I have PR opened for this feature request. Can you please take a look. Thanks.

[adityadani]

@sp98 Apologies for the delay. I have reviewed your PR and put some comments on it.