Fix uploading CI logs to GCS

* Use gsutil to configure the logs bucket's lifecycle,
  which is not in the gc_storage module yet.
  (See https://cloud.google.com/storage/docs/gsutil_install).
* Generate uniq bucket names extended with the build's OS type info as well.
* Ignore boto related errors for the gc_storage module.
* Use no_log when needed to supress noise/secrets in output

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>

tests/cloud_playbooks/files/gcs_life.json

@@ -0,0 +1,9 @@
+{
+	"rule":
+	[
+		{
+			"action": {"type": "Delete"},
+			"condition": {"age": 2}
+		}
+	]
+}