Use same namespace env var as core starter

Author: tconley1428

.github/workflows/per-pr.yml

@@ -111,7 +111,7 @@ jobs:
     name: Cloud tests
     env:
       TEMPORAL_CLOUD_ADDRESS: https://${{ vars.TEMPORAL_CLIENT_NAMESPACE }}.tmprl.cloud:7233
-      TEMPORAL_CLOUD_NAMESPACE: ${{ vars.TEMPORAL_CLIENT_NAMESPACE }}
+      TEMPORAL_NAMESPACE: ${{ vars.TEMPORAL_CLIENT_NAMESPACE }}
       TEMPORAL_CLIENT_CERT: ${{ secrets.TEMPORAL_CLIENT_CERT }}
       TEMPORAL_CLIENT_KEY: ${{ secrets.TEMPORAL_CLIENT_KEY }}
     timeout-minutes: 20

tests/cloud_tests.rs

@@ -35,7 +35,7 @@ async fn get_client(client_name: &str) -> RetryClient<Client> {
         .build()
         .unwrap();
     sgo.connect(
-        env::var("TEMPORAL_CLOUD_NAMESPACE").expect("TEMPORAL_CLOUD_NAMESPACE must be set"),
+        env::var("TEMPORAL_NAMESPACE").expect("TEMPORAL_NAMESPACE must be set"),
         None,
     )
     .await