Updating connections for keyvault

[journeyman-msft]

• [ ] Try running connect_acs.py
• [ ] Try running connect_aoai.py
• [ ] Note: cosmos db code is updated, but no keyvault values from what i see

[HosseinHeris]

please update readme on how to set up keyvault and then later use it. For instance, I am still getting permission error, despite being logged into azure through cli. Code: Forbidden Message: The user, group or application 'appid=04b07795-8ddb-461a-bbee-02f9e1bf7b46;oid=0995ae64-cca6-43d6-a668-7b4acedad4aa;numgroups=3;iss=https://sts.windows.net/8331e14a-9134-4288-bf5a-5e2c8412f074/' does not have secrets get permission on key vault 'kv-6668-apie-dev;location=centralus'. For help resolving this issue, please see https://go.microsoft.com/fwlink/?linkid=2125287 Inner error: {

[HosseinHeris]

As discussed, please also organize it such that one can use either vault or the .env route.

[HosseinHeris]

Approved!