chore: Update gapic-generator-python to v1.8.2

Google APIs · copybara-github · commit 38a48a44a442 · 2023-01-24T09:00:12.000-08:00
PiperOrigin-RevId: 504289125
diff --git a/WORKSPACE b/WORKSPACE
@@ -322,7 +322,7 @@ load("@rules_python//python:pip.bzl", "pip_install")
 
 pip_install()
 
-_gapic_generator_python_version = "1.8.1"
+_gapic_generator_python_version = "1.8.2"
 
 http_archive(
     name = "gapic_generator_python",
