Do not pass api key to spidapter

Author: krinart

.github/workflows/run_spicebench.yml

@@ -60,4 +60,4 @@ jobs:
             --concurrency 2  \
             --query-set tpch \
             --system-adapter-stdio-cmd docker \
-            --system-adapter-stdio-args "run ghcr.io/spiceai/spidapter:latest -e SPICEAI_API_KEY -e SPICE_CLOUD_API_URL -e SPICEAI_BENCHMARK_METRICS_KEY run stdio --verbose"
+            --system-adapter-stdio-args "run ghcr.io/spiceai/spidapter:latest -e SPICEAI_API_KEY -e SPICE_CLOUD_API_URL run stdio --verbose"