Fix

Author: stevebux

.github/workflows/stage-3-build.yaml

@@ -162,11 +162,11 @@ jobs:
             --terraformAction "apply" \
             --overrideProjectName "nhs" \
             --overrideRoleName "nhs-main-acct-supplier-api-github-deploy"
-  artefact-proxies:
-    name: "Build proxies"
+  artefact-proxy:
+    name: "Build proxy"
     runs-on: ubuntu-latest
     if: inputs.deploy_proxy == 'true'
-    needs: [artefact-oas-spec-sandbox, pr-create-dynamic-environment]
+    needs: [artefact-oas-spec, pr-create-dynamic-environment]
     timeout-minutes: 10
     env:
       PROXYGEN_API_NAME: nhs-notify-supplier
@@ -184,6 +184,19 @@ jobs:
           runId: "${{ github.run_id }}"
           buildSandbox: false
           releaseVersion: ${{ github.head_ref || github.ref_name }}
+  artefact-sandbox-proxy:
+    name: "Build proxy for sandbox"
+    runs-on: ubuntu-latest
+    if: inputs.deploy_proxy == 'true'
+    needs: [artefact-oas-spec-sandbox, pr-create-dynamic-environment]
+    timeout-minutes: 10
+    env:
+      PROXYGEN_API_NAME: nhs-notify-supplier
+      APP_CLIENT_ID: ${{ secrets.APP_CLIENT_ID }}
+      APP_PEM_FILE: ${{ secrets.APP_PEM_FILE }}
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
       - name: "Build proxy for sandbox"
         uses: ./.github/actions/build-proxies
         with: