upgrade orbs

.circleci/workflows.yml

@@ -2,10 +2,10 @@
 version: 2.1
 
 orbs:
-  gcp-gcr: circleci/gcp-gcr@0.13.0
-  docker: circleci/docker@2.2
+  gcp-gcr: circleci/gcp-gcr@0.16
+  docker: circleci/docker@2.6
   python: circleci/python@2.1.1
-  gcp-cli: circleci/gcp-cli@3.1.1
+  gcp-cli: circleci/gcp-cli@3.2
 
 parameters:
   python-version: