fix(contentful): retry on network errors when checking credentials (#29664)

Author: axe312ger

packages/gatsby-source-contentful/package.json

@@ -11,6 +11,7 @@
     "@contentful/rich-text-react-renderer": "^14.1.2",
     "@contentful/rich-text-types": "^14.1.2",
     "@hapi/joi": "^15.1.1",
+    "@vercel/fetch-retry": "^5.0.3",
     "axios": "^0.21.1",
     "chalk": "^4.1.0",
     "common-tags": "^1.8.0",

packages/gatsby-source-contentful/src/gatsby-node.js

@@ -4,7 +4,7 @@ const _ = require(`lodash`)
 const fs = require(`fs-extra`)
 const { createClient } = require(`contentful`)
 const v8 = require(`v8`)
-const fetch = require(`node-fetch`)
+const fetch = require(`@vercel/fetch-retry`)(require(`node-fetch`))
 const { CODES } = require(`./report`)
 
 const normalize = require(`./normalize`)

yarn.lock

@@ -4968,6 +4968,14 @@
     "@graphql-typed-document-node/core" "^3.1.0"
     wonka "^4.0.14"
 
+"@vercel/fetch-retry@^5.0.3":
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/@vercel/fetch-retry/-/fetch-retry-5.0.3.tgz#cce5d23f6e64f6f525c24e2ac7c78f65d6c5b1f4"
+  integrity sha512-DIIoBY92r+sQ6iHSf5WjKiYvkdsDIMPWKYATlE0KcUAj2RV6SZK9UWpUzBRKsofXqedOqpVjrI0IE6AWL7JRtg==
+  dependencies:
+    async-retry "^1.3.1"
+    debug "^3.1.0"
+
 "@verdaccio/[email protected]", "@verdaccio/commons-api@^9.7.1":
   version "9.7.1"
   resolved "https://registry.yarnpkg.com/@verdaccio/commons-api/-/commons-api-9.7.1.tgz#816f08eb6cb0dbe345f2546428c837be6804796d"