chore: upgrade gapic-generator-python to 0.46.3#96

gcf-merge-on-green[bot] merged 2 commits into

mastergoogleapis/python-container:masterfrom

owl-bot-b2ed3cb6-1da1-4742-8d34-e89516b6507dgoogleapis/python-container:owl-bot-b2ed3cb6-1da1-4742-8d34-e89516b6507dCopy head branch name to clipboard