roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAzureBazel/20665543?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAzureBazel/20665543?buildTab=artifacts#/db-console/endpoints) on master @ [21b75ac6a827f784fba8cf021284f2340b596588](https://github.com/cockroachdb/cockroach/commits/21b75ac6a827f784fba8cf021284f2340b596588):

```
test db-console/endpoints failed: (test_runner.go:990).func4: in provider: azure: unable to authenticate; please use ``az login`` or double check environment variables [owner=test-eng]
```

Parameters:
- cloud=azure
- coverageBuild=false
- cpu=4
- runtimeAssertionsBuild=false
- ssd=0
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

/cc @cockroachdb/test-eng

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Jira issue: CRDB-55994

Start with the failure at test_runner.go:990 and the roachtest README, then inspect the db-console/endpoints test run and its Azure provider context. Use the linked TeamCity log and artifacts to determine why authentication failed. Done means cluster_creation completes successfully for the Azure configuration without the authentication error.

Written by the indexing model from the issue text.