chore(deps): update dependency google-auth to v2 (#762)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

helpers/preconditions/requirements.txt

@@ -1,3 +1,3 @@
 google-api-python-client~=1.7
-google-auth~=1.6
+google-auth~=2.29
 requests~=2.22