LIME-2030: Remove deploy job environment to assume github role with OIDC as per trust relationship

Author: JessWinterborne

.github/workflows/_secure-pipeline-deploy.yml

@@ -59,7 +59,6 @@ jobs:
   deploy:
     name: Deploy stack
     runs-on: ubuntu-latest
-    environment: ${{ inputs.environment }}
     needs: test-images-build-and-push
     steps:
       - name: SAM build