net - tables - tests pipeline has consistent test failures

[m-redding]

See pipeline history here: https://dev.azure.com/azure-sdk/internal/_build?definitionId=1687&_a=summary

This pipeline has been failing since July.

It seems like there are a few permissions issues or test resource configuration issues at play here. There are a lot of tests failing with one of the following errors:

Error Message:
Azure.RequestFailedException : Request blocked by Auth *** : Request is blocked because principal [] does not have required RBAC permissions to perform action [Microsoft.DocumentDB/databaseAccounts/readMetadata] on resource [/]. Learn more: https://aka.ms/cosmos-native-rbac.
Status: 403 (Forbidden)
ErrorCode: Forbidden

Azure.RequestFailedException : Service request failed.
Status: 403 (Database Account does not exist)

This was a blocker for me to be able to use this pipeline to validate changes in #46637