Refactor environment variables in build workflow

Moved environment variables to the top level of the workflow.

Author: xc2f

.github/workflows/build-to-branch.yml

@@ -5,18 +5,19 @@ on:
     branches:
       - main
   workflow_dispatch:
+  
+env:
+  AWS_SERVICE_REGION: ${{ vars.AWS_SERVICE_REGION }}
+  AWS_ACCESS_KEY: ${{ vars.AWS_ACCESS_KEY }}
+  AWS_ACCESS_SECRET: ${{ secrets.AWS_ACCESS_SECRET }}
+  EMAIL_DEFAULT_FROM_NAME: ${{ vars.EMAIL_DEFAULT_FROM_NAME }}
+  EMAIL_DEFAULT_FROM_NO_REPLY: ${{ vars.EMAIL_DEFAULT_FROM_NO_REPLY }}
+  EMAIL_DEFAULT_FROM_HI: ${{ vars.EMAIL_DEFAULT_FROM_HI }}
+  EMAIL_DEFAULT_REPLY_TO: ${{ vars.EMAIL_DEFAULT_REPLY_TO }}
 
 jobs:
   build:
     runs-on: ubuntu-latest
-    env:
-      AWS_SERVICE_REGION: ${{ vars.AWS_SERVICE_REGION }}
-      AWS_ACCESS_KEY: ${{ vars.AWS_ACCESS_KEY }}
-      AWS_ACCESS_SECRET: ${{ vars.AWS_ACCESS_SECRET }}
-      EMAIL_DEFAULT_FROM_NAME: ${{ vars.EMAIL_DEFAULT_FROM_NAME }}
-      EMAIL_DEFAULT_FROM_NO_REPLY: ${{ vars.EMAIL_DEFAULT_FROM_NO_REPLY }}
-      EMAIL_DEFAULT_FROM_HI: ${{ vars.EMAIL_DEFAULT_FROM_HI }}
-      EMAIL_DEFAULT_REPLY_TO: ${{ vars.EMAIL_DEFAULT_REPLY_TO }}
 
     steps:
       - name: Checkout source