build(deps): bump slack-sdk from 3.7.0 to 3.9.1 in /.github/actions/pr_notifier#15

dependabot[bot] wants to merge 2 commits intomainalyssawilk/envoy:mainfrom

dependabot/pip/dot-github/actions/pr_notifier/slack-sdk-3.9.1alyssawilk/envoy:dependabot/pip/dot-github/actions/pr_notifier/slack-sdk-3.9.1Copy head branch name to clipboard