build(deps): bump slack-sdk from 3.11.0 to 3.20.1 in /.github/actions/pr_notifier#253

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dependabot/pip/dot-github/actions/pr_notifier/slack-sdk-3.20.1douglas-reid/envoy:dependabot/pip/dot-github/actions/pr_notifier/slack-sdk-3.20.1Copy head branch name to clipboard