Reapply "VIA-598 fix typo in deploy metadata job"

This reverts commit 2bad308.

Author: donna-belsey-nhs

.github/workflows/cicd-3-deploy.yaml

@@ -18,7 +18,7 @@ env:
   AWS_REGION: eu-west-2
 
 jobs:
-  metadata2:
+  metadata:
     name: "Set CI/CD metadata"
     runs-on: ubuntu-latest
     timeout-minutes: 1