Bump slackapi/slack-github-action from 1.25.0 to 1.26.0 in /.github/workflows (#10221)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: 凌 <i@ioioi.cn>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

.github/workflows/docker.yaml

@@ -151,7 +151,7 @@ jobs:
 
       - name: Notify on failure
         if: github.event_name == 'push' && failure() # do not notify on cancelled() as cancelling is performed by hand
-        uses: slackapi/slack-github-action@v1.25.0
+        uses: slackapi/slack-github-action@v1.26.0
         with:
           payload: |
             {"text": "<!channel> GitHub Actions error for ${{ github.workflow }} ❌\n\n\n*Repository:* https://github.com/${{ github.repository }}\n*Action:* https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}\n*Author:* ${{ github.actor }}\n*Event:* ${{ github.event_name }}\n"}