circleci only use node_env production on build step

Author: BryceLTaylor

.circleci/config.yml

@@ -48,7 +48,6 @@ jobs:
     <<: *defaults
     environment:
       JEST_JUNIT_OUTPUT_DIR: test-results
-      NODE_ENV: production
       NODE_OPTIONS: --max-old-space-size=4000
     steps:
       - *restore_git_cache
@@ -66,6 +65,8 @@ jobs:
           command: npm run test:unit -- --reporters="default" --reporters="jest-junit" --coverage --coverageReporters=text --coverageReporters=lcov --maxWorkers="2"
       - run:
           name: Build
+          environment:
+            NODE_ENV: production
           command: npm run build
       - run:
           name: Integration