Fix: [AEA-0000] - fix no initial tag for cdk (#1579)

## Summary

- Routine Change

### Details

- fix no initial tag for cdk

Author: anthony-nhs

.github/workflows/cdk_release_code.yml

@@ -104,11 +104,19 @@ jobs:
       - name: fix cdk.json for diff - existing tag
         if: ${{ inputs.DEPLOY_CDK_CODE == false }}
         run: |
-          VERSION_NUMBER=$(aws cloudformation describe-stacks --stack-name  "$STACK_NAME" --query "Stacks[0].Tags[?Key=='version'].Value" --output text)
-          COMMIT_ID=$(aws cloudformation describe-stacks --stack-name  "$STACK_NAME" --query "Stacks[0].Tags[?Key=='commit'].Value" --output text)
-          if [ "${VERSION_NUMBER}" == "" ]; then
-            echo "Can not find target tag. Using initial tag in repo"
-            export VERSION_NUMBER="v1.0.4-alpha"
+          if aws cloudformation describe-stacks --stack-name "$STACK_NAME" >/dev/null 2>&1; then
+            VERSION_NUMBER=$(aws cloudformation describe-stacks \
+              --stack-name "$STACK_NAME" \
+              --query "Stacks[0].Tags[?Key=='version'].Value" \
+              --output text)
+            COMMIT_ID=$(aws cloudformation describe-stacks \
+              --stack-name "$STACK_NAME" \
+              --query "Stacks[0].Tags[?Key=='commit'].Value" \
+              --output text)
+          else
+            echo "Initial deployment. Using unknown tag"
+            VERSION_NUMBER="unknown"
+            COMMIT_ID="unknown"
           fi
           VERSION_NUMBER="${VERSION_NUMBER}" \
             COMMIT_ID="${COMMIT_ID}" \