build(deps): bump sphinx from 4.3.0 to 4.3.1 in /tools/base#19122

htuch merged 1 commit intomainenvoyproxy/envoy:mainfrom

dependabot/pip/tools/base/sphinx-4.3.1envoyproxy/envoy:dependabot/pip/tools/base/sphinx-4.3.1Copy head branch name to clipboard