core: update package.json deps

Author: dirkmc

package.json

@@ -87,7 +87,7 @@
     "@hapi/joi": "^15.0.1",
     "async": "^2.6.1",
     "async-iterator-all": "0.0.2",
-    "async-iterator-to-pull-stream": "^1.1.0",
+    "async-iterator-to-pull-stream": "^1.3.0",
     "async-iterator-to-stream": "^1.1.0",
     "base32.js": "~0.1.0",
     "bignumber.js": "^8.0.2",
@@ -159,6 +159,7 @@
     "merge-options": "^1.0.1",
     "mime-types": "^2.1.21",
     "mkdirp": "~0.5.1",
+    "mortice": "dirkmc/mortice#fix/read-then-write",
     "multiaddr": "^6.0.5",
     "multiaddr-to-uri": "^4.0.1",
     "multibase": "~0.6.0",