ci: bump slackapi/slack-github-action from 1.27 to 3.0

[dependabot]

Bumps slackapi/slack-github-action from 1.27 to 3.0.

Release notes

Sourced from slackapi/slack-github-action's releases.

Slack GitHub Action v3.0.0

The @v3.0.0 release had a hiccup on publish and we recommend using @​v3.0.1 or a more recent version when updating! Oops!

🎽 Running Slack CLI commands and the active Node runtime, both included in this release 👟 ✨

⚠️ Breaking change: Node.js 24 the runtime

This major version updates the GitHub Actions required runtime to Node.js 24. Most GitHub-hosted runners already include this, but self-hosted runners may need to be updated ahead of planned deprecations of Node 20 on GitHub Actions runners.

📺 Enhancement: Run Slack CLI commands

This release introduces a new technique for running Slack CLI commands directly in GitHub Actions workflows. Use this to install the latest version (or a specific one) of the CLI and execute commands like deploy for merges to main, manifest validate with tests, and other commands.

Gather a token using the following CLI command to store with repo secrets, then get started with an example below:

$ slack auth token

🧪 Validate an app manifest on pull requests

Check that your app manifest is valid before merging changes:

🔗 https://docs.slack.dev/tools/slack-github-action/sending-techniques/running-slack-cli-commands/validate-a-manifest

- name: Validate the manifest
  uses: slackapi/slack-github-action/cli@v3.0.0
  with:
    command: "manifest validate --app ${{ vars.SLACK_APP_ID }}"
    token: ${{ secrets.SLACK_SERVICE_TOKEN }}

🚀 Deploy your app on push to main

Automate deployments whenever changes land on your main branch:

🔗 https://docs.slack.dev/tools/slack-github-action/sending-techniques/running-slack-cli-commands/deploy-an-app

- name: Deploy the app
  uses: slackapi/slack-github-action/cli@v3.0.0
  with:
    command: "deploy --app ${{ vars.SLACK_APP_ID }} --force"
    token: ${{ secrets.SLACK_SERVICE_TOKEN }}

Any Slack CLI command can be passed through the command option without the "slack" prefix 🍀

The token input accepts a service token for authentication. You can gather this token by running slack auth token with the Slack CLI and storing the value as a repository secret.

... (truncated)

Commits

• af78098 Release
• add1a00 chore(release): tag version 3.0.1 (#577)
• 2bc9e7a chore: use a unique title for marketplace (#576)
• c5d43da chore(release): tag version 3.0.0 (#575)
• 963b979 build(deps): bump @​slack/web-api from 7.14.1 to 7.15.0 (#574)
• 90b7328 build(deps): bump @​slack/logger from 4.0.0 to 4.0.1 (#573)
• e45cb89 feat: support slack cli commands with composite action inputs (#560)
• 0aed2c2 build(deps): bump https-proxy-agent from 7.0.6 to 8.0.0 (#572)
• 4795f96 build(deps-dev): bump sinon from 21.0.1 to 21.0.2 (#571)
• bd9e2ce build(deps): bump actions/setup-node from 6.2.0 to 6.3.0 (#569)
• Additional commits viewable in compare view

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