Update env var name

Author: sh-soltanpour

gatewayd_plugin.yaml

@@ -30,5 +30,5 @@ plugins:
       - API_ADDRESS=localhost:18080
       - EXIT_ON_STARTUP_ERROR=False
       - SENTRY_DSN=https://70eb1abcd32e41acbdfc17bc3407a543@o4504550475038720.ingest.sentry.io/4505342961123328
-      - CACHE_ASYNCHRONOUS_LEVEL
+      - CACHE_CHANNEL_BUFFER_SIZE=100
     checksum: 3988e10aefce2cd9b30888eddd2ec93a431c9018a695aea1cea0dac46ba91cae