Bump slackapi/slack-github-action from 1.27.0 to 2.0.0 (#4064)

Bumps [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action) from 1.27.0 to 2.0.0.
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Commits](slackapi/slack-github-action@37ebaef...485a9d4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/preflight.yml

@@ -56,7 +56,7 @@ jobs:
           ./scripts/preflight.sh -r "${{ github.ref }}" -t "${{ matrix.parallelism }}" -i "${{ matrix.index }}" -o $GITHUB_OUTPUT
       - name: Post failure to slack
         if: ${{ github.ref == 'refs/heads/master' && failure() }}
-        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0
+        uses: slackapi/slack-github-action@485a9d42d3a73031f12ec201c457e2162c45d02d
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.PREFLIGHT_SLACK_WEBHOOK_URL }}
           SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK

.github/workflows/preflight_cleanup.yml

@@ -33,7 +33,7 @@ jobs:
           go run ./scripts/clean-up-preflight-apps
       - name: Post failure to slack
         if: ${{ github.ref == 'refs/heads/master' && failure() }}
-        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0
+        uses: slackapi/slack-github-action@485a9d42d3a73031f12ec201c457e2162c45d02d
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.PREFLIGHT_SLACK_WEBHOOK_URL }}
           SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK

.github/workflows/preflight_gpu.yml

@@ -85,7 +85,7 @@ jobs:
           ./scripts/preflight.sh -r "${{ github.ref }}" -t "${{ matrix.parallelism }}" -i "${{ matrix.index }}" -o $GITHUB_OUTPUT
       - name: Post failure to slack
         if: ${{ github.ref == 'refs/heads/master' && failure() }}
-        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0
+        uses: slackapi/slack-github-action@485a9d42d3a73031f12ec201c457e2162c45d02d
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.PREFLIGHT_SLACK_WEBHOOK_URL }}
           SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK