release: consume auto-rotated SSL certificate

[ldennington]

Update release workflows to consume new autorotated SSL certificate. There
are two main parts:

1. Add the "SendX5c" : "true" key value pair to the contents of our ESRP
   Auth Json file. This allows us to use the new auto-rotating certificate
   without having to upload/manage it from our App Registration.i

2. Remove the AZURE_AAD_ID_SSL secret/environment variable. The new
   certificate was generated with our main AZURE_AAD_ID app registration, so
   this extra ID is no longer needed.

You can find my successful test run with these changes here.

[mjcheetham]

🚀

I assume this also requires that we update the secret variable values in this repo to point to the new cert? Or is the cert downloaded from KV going to have the same identifier for each auto-renewal?