Bump slackapi/slack-github-action from 3.0.1 to 3.0.2

Bumps [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action) from 3.0.1 to 3.0.2.
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Changelog](https://github.com/slackapi/slack-github-action/blob/main/CHANGELOG.md)
- [Commits](slackapi/slack-github-action@af78098...03ea543)

---
updated-dependencies:
- dependency-name: slackapi/slack-github-action
  dependency-version: 3.0.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/handbook-changes-notify.yaml

@@ -43,7 +43,7 @@ jobs:
       run: |
         ./.github/scripts/generate_handbook_urls.sh
     - name: Send notification
-      uses: slackapi/slack-github-action@af78098f536edbc4de71162a307590698245be95 # v3.0.1
+      uses: slackapi/slack-github-action@03ea5433c137af7c0495bc0cad1af10403fc800c # v3.0.2
       with:
         method: chat.postMessage
         token: ${{ secrets.SLACK_GHBOT_TOKEN }}