Set flags on whole job

Author: jonrohan

.github/workflows/ci.yml

@@ -185,6 +185,10 @@ jobs:
       fail-fast: false
       matrix:
         shard: [1, 2, 3, 4]
+    env:
+      PRIMER_REACT_CSS_MODULES_TEAM: 1
+      PRIMER_REACT_CSS_MODULES_STAFF: 1
+      PRIMER_REACT_CSS_MODULES_GA: 1
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js 20.x
@@ -202,9 +206,6 @@ jobs:
         id: storybook
         working-directory: packages/react
         run: |
-          export PRIMER_REACT_CSS_MODULES_TEAM=1
-          export PRIMER_REACT_CSS_MODULES_STAFF=1
-          export PRIMER_REACT_CSS_MODULES_GA=1
           npx serve -l 6006 storybook-static &
           pid=$!
           echo "pid=$pid" >> $GITHUB_OUTPUT