Make gatsby-source-react-error-codes plugin fail harder

plugins/gatsby-source-react-error-codes/gatsby-node.js

@@ -6,6 +6,7 @@ const errorCodesUrl =
 exports.sourceNodes = async ({boundActionCreators}) => {
   const {createNode} = boundActionCreators;
 
+  try {
     const jsonString = await request(errorCodesUrl);
 
     createNode({
@@ -17,4 +18,11 @@ exports.sourceNodes = async ({boundActionCreators}) => {
         contentDigest: jsonString,
       },
     });
+  } catch (error) {
+    console.error(
+      `The gatsby-source-react-error-codes plugin has failed:\n${error.message}`,
+    );
+
+    process.exit(1);
+  }
 };