Materialize/test/canary-load

Canary Load

Runs queries continuously against the QA Cloud Canary, see https://www.notion.so/materialize/QA-Release-Verification-107e03aaf4fe4029a35c21c46009f8fb

To run the validation procedure:

1. Make sure the required environment variables are set correctly

2. Run:

   ./mzcompose run default