fix(checks): change exit codes for checks

Author: dkundel

src/checks/check-credentials.ts

@@ -29,6 +29,6 @@ export function checkConfigForCredentials(
   console.error(msg);
 
   if (shouldExit) {
-    process.exit(22 /* EINVAL */);
+    process.exit(1);
   }
 }

src/checks/project-structure.ts

@@ -62,7 +62,7 @@ export default async function checkProjectStructure(
 
   if (shouldExit) {
     console.error(errorMessage(title, messageBody));
-    process.exit(20 /* ENOTDIR */);
+    process.exit(1);
   } else {
     console.warn(warningMessage(title, messageBody));
   }