Incorrect adal requirement in botframework-connector setup.py

[cas--]

Version

botframework-connector 4.12.0

Describe the bug

While looking into dependencies installed by botframework-connector I saw that deprecated adal in addition to msal.

The requirements.txt does not have this requirement but setup.py does

I did a quick github search and no reference to adal and looks like it was replaced with msal here: 5a62280

To Reproduce

pip install botframework-connector

Expected behavior

No unneeded pip packages

[peterinnesmsft]

@tracyboehrer @axelsrz can you please take a look at the submitted PR and verify if we need any additional changes?

[tracyboehrer]

@cas-- Thanks! This has been applied to the linked PR and will be merged in main soon and included in the next release.