fix(azure): fix credential caching key mismatch in azureclient

Use consistent azureCredentialsKey for both storing and loading cached
credentials instead of mixing azureCredentialsKey and
userAssignedIdentityCredentialsFilePath. This prevents repeated credential
recreation in the Azure driver's storageAccountsClient method.

Signed-off-by: Bryan Cox <[email protected]>

Author: bryan-cox

pkg/storage/azure/azureclient/azureclient.go

@@ -111,7 +111,7 @@ func (c *Client) getCreds(ctx context.Context) (azcore.TokenCredential, error) {
 		var ok bool
 
 		// We need to only store the Azure credentials once and reuse them after that.
-		storedCreds, found := c.azureCredentials.Load(userAssignedIdentityCredentialsFilePath)
+		storedCreds, found := c.azureCredentials.Load(azureCredentialsKey)
 		if !found {
 			klog.V(2).Info("Using UserAssignedIdentityCredentials for Azure authentication for managed Azure HCP")
 			clientOptions := azcore.ClientOptions{