build: fix MaxListenersExceededWarning (#3637)

build/utils/process.ts

@@ -12,12 +12,17 @@ export const run = async (command: string, cwd: string = projRoot) =>
       cwd,
       stdio: 'inherit',
     })
+
+    const onProcessExit = () => app.kill('SIGHUP')
+
     app.on('close', (code) => {
+      process.removeListener('exit', onProcessExit)
+
       if (code === 0) resolve()
       else
         reject(
           new Error(`Command failed. \n Command: ${command} \n Code: ${code}`)
         )
     })
-    process.on('exit', () => app.kill('SIGHUP'))
+    process.on('exit', onProcessExit)
   })