build(deps): bump slackapi/slack-github-action from 2 to 3 (#342)

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

Author: dependabot[bot]

.github/workflows/infracost.yml

@@ -91,7 +91,7 @@ jobs:
           echo "::set-output name=diffTotalMonthlyCost::$(jq '(.diffTotalMonthlyCost // 0) | tonumber' /tmp/infracost.json)"
 
       - name: 🚀 Send cost estimate to Slack
-        uses: slackapi/slack-github-action@v2
+        uses: slackapi/slack-github-action@v3
         if: ${{ inputs.slack_notification == 'true' }}
         with:
           payload: ${{ steps.infracost-slack.outputs.slack-message }}

.github/workflows/notify-slack.yml

@@ -187,7 +187,7 @@ jobs:
           echo "payload=$(jq -c . payload.json)" >> $GITHUB_OUTPUT
 
       - name: Send to Slack
-        uses: slackapi/slack-github-action@v2.1.1
+        uses: slackapi/slack-github-action@v3
         with:
           method: chat.postMessage
           payload: ${{ steps.build.outputs.payload }}