Bump slackapi/slack-github-action from 1.27.0 to 2.0.0 (#272)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrew Pepler <andrew.pepler@digital.justice.gov.uk>

.github/workflows/deploy.yml

@@ -116,8 +116,10 @@ jobs:
           metrics="${{ vars.ECR_URL }}:$SHA"
 
       - name: Send deploy notification to product Slack channel
-        uses: slackapi/slack-github-action@v1.27.0
+        uses: slackapi/slack-github-action@v2.0.0
         with:
+          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
+          webhook-type: incoming-webhook
           payload: |
             {
               "attachments": [
@@ -141,9 +143,6 @@ jobs:
                 }
               ]
             }
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
-          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
 
   deploy-production:
     runs-on: ubuntu-latest
@@ -206,8 +205,10 @@ jobs:
           metrics="${{ vars.ECR_URL }}:$SHA"
 
       - name: Send deploy notification to product Slack channel
-        uses: slackapi/slack-github-action@v1.27.0
+        uses: slackapi/slack-github-action@v2.0.0
         with:
+          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
+          webhook-type: incoming-webhook
           payload: |
             {
               "attachments": [
@@ -231,13 +232,12 @@ jobs:
                 }
               ]
             }
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
-          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
 
       - name: Send deploy notification to product Slack channel
-        uses: slackapi/slack-github-action@v1.27.0
+        uses: slackapi/slack-github-action@v2.0.0
         with:
+          webhook: ${{ secrets.PROD_SLACK_WEBHOOK_URL }}
+          webhook-type: incoming-webhook
           payload: |
             {
               "attachments": [
@@ -261,6 +261,3 @@ jobs:
                 }
               ]
             }
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.PROD_SLACK_WEBHOOK_URL }}
-          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK