Update the premium token reference in CI (#32)

Author: nemanjaglumac

.github/workflows/e2e-tests.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 10
     name: e2e-tests
     env:
-      PREMIUM_EMBEDDING_TOKEN: ${{ secrets.ENTERPRISE_TOKEN }}
+      PREMIUM_EMBEDDING_TOKEN: ${{ secrets.MB_PRO_SELF_HOSTED_TOKEN }}
     permissions:
       id-token: write
       contents: read
@@ -52,4 +52,4 @@ jobs:
           name: cypress-recording-latest
           path: |
             ./e2e/cypress
-          if-no-files-found: ignore
+          if-no-files-found: ignore