feat: use env_vars for TIMEOUT_STREAMING (#1527)

* feat: use env_vars for TIMEOUT_STREAMING

* fix lint

* fix misnamed variable

* fix lint

client/qiskit_serverless/core/constants.py

@@ -23,8 +23,9 @@
 
 # request timeout
 REQUESTS_TIMEOUT: int = 30
-REQUESTS_STREAMING_TIMEOUT: int = 60
 REQUESTS_TIMEOUT_OVERRIDE = "REQUESTS_TIMEOUT_OVERRIDE"
+REQUESTS_STREAMING_TIMEOUT: int = 60
+REQUESTS_STREAMING_TIMEOUT_OVERRIDE = "REQUESTS_TIMEOUT_OVERRIDE"
 
 # gateway
 ENV_GATEWAY_PROVIDER_HOST = "ENV_GATEWAY_PROVIDER_HOST"
@@ -49,6 +50,13 @@
 REQUESTS_TIMEOUT = int(
     os.getenv(REQUESTS_TIMEOUT_OVERRIDE, default=str(REQUESTS_TIMEOUT))
 )
+
+REQUESTS_STREAMING_TIMEOUT = int(
+    os.getenv(
+        REQUESTS_STREAMING_TIMEOUT_OVERRIDE, default=str(REQUESTS_STREAMING_TIMEOUT)
+    )
+)
+
 MAX_ARTIFACT_FILE_SIZE_MB = int(
     os.getenv(
         MAX_ARTIFACT_FILE_SIZE_MB_OVERRIDE, default=str(MAX_ARTIFACT_FILE_SIZE_MB)