Determine git sha for app deploy

This gets used when checking out the terraform code in
"deploy-application", without it the workflow sha is always used.

Author: misaka

.github/workflows/deploy.yml

@@ -88,7 +88,7 @@ jobs:
   deploy-application:
     permissions:
       id-token: write
-    needs: deploy-infrastructure
+    needs: [deploy-infrastructure, determine-git-sha]
     uses: ./.github/workflows/deploy-application.yml
     with:
       environment: ${{ inputs.environment }}