ci(playwright.yml): add environment variables for secrets BINGAI_TOKEN, CHATGPT_TOKEN, MONGO_URI, and OPENAI_KEY

.github/workflows/playwright.yml

@@ -1,14 +1,19 @@
 name: Playwright Tests
 on:
   push:
-    branches: [ main, master ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, master ]
+    branches: [ main ]
 jobs:
   tests_e2e:
     name: Run end-to-end tests
     timeout-minutes: 60
     runs-on: ubuntu-latest
+    env:
+      BINGAI_TOKEN: ${{ secrets.BINGAI_TOKEN }}
+      CHATGPT_TOKEN: ${{ secrets.CHATGPT_TOKEN }}
+      MONGO_URI: ${{ secrets.MONGO_URI }}
+      OPENAI_KEY: ${{ secrets.OPENAI_KEY }}
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v3