chore(): add missing env var

Author: mhartington

.github/workflows/docs-test.yml

@@ -32,6 +32,8 @@ jobs:
 
       - name: Build docs app
         run: pnpm --filter=docs run build
+        env:
+          MIXEDBREAD_API_KEY: ${{ secrets.MIXEDBREAD_API_KEY }}
 
       - name: Run Playwright tests
         run: pnpm --filter=docs exec playwright test