ci: bump slackapi/slack-github-action from 1.27.0 to 2.0.0 (#249)

* ci: bump slackapi/slack-github-action from 1.27.0 to 2.0.0

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@v1.27.0...v2.0.0)

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

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

* update action

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Julian Gruber <julian@juliangruber.com>

.github/workflows/ci.yml

@@ -143,11 +143,13 @@ jobs:
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
       - if: failure()
-        uses: slackapi/slack-github-action@v1.27.0
+        uses: slackapi/slack-github-action@v2.0.0
         with:
-          channel-id: alerts
+          method: chat.postMessage
+          token: ${{ secrets.SLACK_BOT_TOKEN }}
           payload: |
             {
+              "channel": "alerts",
               "text": "Deployment of `${{ github.event.repository.name }}` failed",
               "blocks": [
                 {
@@ -159,8 +161,6 @@ jobs:
                 }
               ]
             }
-        env:
-          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
 
   deploy-observer:
     if: github.ref == 'refs/heads/main'
@@ -173,14 +173,16 @@ jobs:
         env:
           FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN_OBSERVER }}
       - if: failure()
-        uses: slackapi/slack-github-action@v1.27.0
+        uses: slackapi/slack-github-action@v2.0.0
         with:
-          channel-id: alerts
+          method: chat.postMessage
+          token: ${{ secrets.SLACK_BOT_TOKEN }}
           payload: |
             {
               "text": "Deployment of `${{ github.event.repository.name }}` failed",
               "blocks": [
                 {
+                  "channel": "alerts",
                   "type": "section",
                   "text": {
                     "type": "mrkdwn",
@@ -189,5 +191,3 @@ jobs:
                 }
               ]
             }
-        env:
-          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}