integration tests: pass openai secret (#770)

* pass openai secret

* only run in master branch

Author: sashabaranov

.github/workflows/integration-tests.yml

@@ -16,4 +16,6 @@ jobs:
       with:
         go-version: '1.21'
     - name: Run integration tests
+      env:
+        OPENAI_TOKEN: ${{ secrets.OPENAI_TOKEN }}
       run: go test -v -tags=integration ./api_integration_test.go