feat: Modify provider RPC error log severity from error to warn (#…

…323)

The error middleware injected in the provider-side json-rpc-engine was calling log.error() (in practice, log = console) every time it observed a JSON-RPC error response. This brings down the severity to from error to warn.
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Co-authored-by: legobeat <[email protected]>

src/utils.ts

@@ -61,7 +61,7 @@ function createErrorMiddleware(
       if (!error) {
         return done();
       }
-      log.error(`MetaMask - RPC Error: ${error.message}`, error);
+      log.warn(`MetaMask - RPC Error: ${error.message}`, error);
       return done();
     });
   };