fix(ci): keep provider smoke secret out of step env

.gitea/workflows/e2e-health.yaml

@@ -53,13 +53,16 @@ jobs:
 
       - name: Source Provider Freshness Smoke
         run: |
+          OPERATOR_KEY="$(cat <<'AWOOOI_SECRET_AWOOOP_OPERATOR_API_KEY'
+          ${{ secrets.AWOOOP_OPERATOR_API_KEY }}
+          AWOOOI_SECRET_AWOOOP_OPERATOR_API_KEY
+          )"
+          AWOOOP_OPERATOR_API_KEY="${OPERATOR_KEY}" \
+          AWOOOP_OPERATOR_ID=gitea-e2e-health \
           python3 scripts/alert_chain_smoke_test.py \
             --api-url https://awoooi.wooo.work \
             --source-provider-heartbeat \
             --json
-        env:
-          AWOOOP_OPERATOR_API_KEY: ${{ secrets.AWOOOP_OPERATOR_API_KEY }}
-          AWOOOP_OPERATOR_ID: gitea-e2e-health
 
       - name: Notify Telegram on Failure
         if: failure()