CBQE-7498: Update S3 bucket creation exceptions

Adds the new S3 exception to list we can ignore in bucket creation

Change-Id: I32e34962e479aabcc3f5820519e3b9fb18c420f6
Reviewed-on: https://review.couchbase.org/c/testrunner/+/171750
Tested-by: Joe Mitchell Jones <joe.mitchelljones@couchbase.com>
Reviewed-by: Arunkumar Senthilnathan <arun.couchbase@yahoo.com>

pytests/ent_backup_restore/provider/s3.py

@@ -50,7 +50,7 @@ def setup(self):
             self.resource.create_bucket(Bucket=self.bucket, CreateBucketConfiguration=configuration)
         except botocore.exceptions.ClientError as error:
             error_code = error.response['Error']['Code']
-            if error_code != 'BucketAlreadyExists':
+            if error_code not in ('BucketAlreadyExists', 'BucketAlreadyOwnedByYou'):
                 raise error
 
     def teardown(self, info, remote_client):