Update apollo-link to the latest version 🚀 (#6033)

* chore(package): update apollo-link-http to version 1.5.16

* chore(package): update apollo-link-ws to version 1.0.19

* chore(package): update apollo-link to version 1.2.13

* chore(package): update lockfile package-lock.json

Author: greenkeeper[bot]

package-lock.json

@@ -64,9 +64,9 @@
     "@parse/minami": "1.0.0",
     "apollo-cache-inmemory": "1.6.3",
     "apollo-client": "2.6.4",
-    "apollo-link": "1.2.12",
-    "apollo-link-http": "1.5.15",
-    "apollo-link-ws": "1.0.18",
+    "apollo-link": "1.2.13",
+    "apollo-link-http": "1.5.16",
+    "apollo-link-ws": "1.0.19",
     "apollo-upload-client": "11.0.0",
     "apollo-utilities": "1.3.2",
     "babel-eslint": "10.0.3",