chore: use gapic-generator-python 0.58.1

Google APIs · copybara-github · commit 987192dfddeb · 2021-12-09T15:02:21.000-08:00
fix: syntax fix for required_fields struct in rest transport

committer: parthea
PiperOrigin-RevId: 415363977
diff --git a/WORKSPACE b/WORKSPACE
@@ -232,7 +232,7 @@ load("@rules_python//python:pip.bzl", "pip_repositories")
 
 pip_repositories()
 
-_gapic_generator_python_version = "0.58.0"
+_gapic_generator_python_version = "0.58.1"
 
 http_archive(
     name = "gapic_generator_python",
