chore: update deps

Author: daviddias

package.json

@@ -40,11 +40,11 @@
   "homepage": "https://github.com/ipfs/js-ipfs-unixfs-engine#readme",
   "devDependencies": {
     "aegir": "^11.0.2",
-    "chai": "^4.0.1",
-    "dirty-chai": "^1.2.2",
+    "chai": "^4.0.2",
+    "dirty-chai": "^2.0.0",
     "ipfs": "^0.24.1",
-    "ipfs-block-service": "^0.9.1",
-    "ipfs-repo": "^0.13.1",
+    "ipfs-block-service": "^0.10.0",
+    "ipfs-repo": "^0.15.0",
     "ncp": "^2.0.0",
     "pre-commit": "^1.2.2",
     "pull-generate": "^2.2.0",
@@ -53,13 +53,13 @@
     "split": "^1.0.0"
   },
   "dependencies": {
-    "async": "^2.4.1",
+    "async": "^2.5.0",
     "bs58": "^4.0.1",
     "cids": "^0.5.0",
     "deep-extend": "^0.5.0",
-    "ipfs-unixfs": "^0.1.11",
+    "ipfs-unixfs": "^0.1.12",
     "ipld-dag-pb": "^0.11.0",
-    "ipld-resolver": "^0.11.1",
+    "ipld-resolver": "^0.12.0",
     "left-pad": "^1.1.3",
     "lodash": "^4.17.4",
     "multihashes": "^0.4.5",
@@ -74,8 +74,8 @@
     "pull-pushable": "^2.1.1",
     "pull-stream": "^3.6.0",
     "pull-traverse": "^1.0.3",
-    "pull-write": "^1.1.2",
-    "safe-buffer": "^5.1.0",
+    "pull-write": "^1.1.4",
+    "safe-buffer": "^5.1.1",
     "sparse-array": "^1.3.1"
   },
   "contributors": [