deps: update dependency google-auth to v2.23.3 (#2154)

Author: renovate-bot

.kokoro/requirements.txt

@@ -129,8 +129,9 @@ google-api-core==2.12.0 \
     # via
     #   google-cloud-core
     #   google-cloud-storage
-google-auth==2.14.1 \
-    --hash=sha256:f5d8701633bebc12e0deea4df8abd8aff31c28b355360597f7f2ee60f2e4d016
+google-auth==2.23.3 \
+    --hash=sha256:6864247895eea5d13b9c57c9e03abb49cb94ce2dc7c58e91cba3248c7477c9e3 \
+    --hash=sha256:a8f4608e65c244ead9e0538f181a96c6e11199ec114d41f1d7b1bffa96937bda
     # via
     #   gcp-releasetool
     #   google-api-core