[gatsby-source-filesystem] add fs error handling, bump got retry attemps count (#5375)

* [gatsby-source-filesystem] catch fs stream errors

* [gatsby-source-filesystem] bump got retries from default 2 to 5

* normalize reject payload

Author: pieh

packages/gatsby-source-filesystem/src/create-remote-file-node.js

@@ -132,15 +132,23 @@ async function pushToQueue(task, cb) {
  */
 const requestRemoteNode = (url, headers, tmpFilename, filename) =>
   new Promise((resolve, reject) => {
-    const responseStream = got.stream(url, { ...headers, timeout: 30000 })
+    const responseStream = got.stream(url, {
+      ...headers,
+      timeout: 30000,
+      retries: 5,
+    })
     const fsWriteStream = fs.createWriteStream(tmpFilename)
     responseStream.pipe(fsWriteStream)
     responseStream.on(`downloadProgress`, pro => console.log(pro))
 
     // If there's a 400/500 response or other error.
     responseStream.on(`error`, (error, body, response) => {
       fs.removeSync(tmpFilename)
-      reject({ error, body, response })
+      reject(error)
+    })
+
+    fsWriteStream.on(`error`, error => {
+      reject(error)
     })
 
     responseStream.on(`response`, response => {