chore: update deps

Author: achingbrain

package.json

@@ -37,7 +37,7 @@
   },
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs-exporter#readme",
   "devDependencies": {
-    "aegir": "^19.0.3",
+    "aegir": "^20.0.0",
     "async-iterator-all": "^1.0.0",
     "async-iterator-buffer-stream": "^1.0.0",
     "async-iterator-first": "^1.0.0",
@@ -55,10 +55,10 @@
   "dependencies": {
     "async-iterator-last": "^1.0.0",
     "cids": "~0.7.1",
-    "err-code": "^1.1.2",
+    "err-code": "^2.0.0",
     "hamt-sharding": "~0.0.2",
     "ipfs-unixfs": "~0.1.16",
-    "ipfs-unixfs-importer": "~0.39.11"
+    "ipfs-unixfs-importer": "~0.40.0"
   },
   "contributors": [
     "Alan Shaw <[email protected]>",

src/resolvers/dag-cbor.js

@@ -4,7 +4,7 @@ const CID = require('cids')
 const errCode = require('err-code')
 
 const resolve = async (cid, name, path, toResolve, resolve, depth, ipld) => {
-  let node = await ipld.get(cid)
+  const node = await ipld.get(cid)
   let subObject = node
   let subPath = path
 

test/exporter.spec.js

@@ -626,8 +626,8 @@ describe('exporter', () => {
   it('reads files in multiple steps that are split across lots of nodes in really small chunks', async function () {
     this.timeout(600 * 1000)
 
-    let results = []
-    let chunkSize = 1024
+    const results = []
+    const chunkSize = 1024
     let offset = 0
 
     const cid = await addTestFile({