use patched robotjs to fix compile failure

spec/package-lock.json

@@ -895,9 +895,9 @@
       "dev": true
     },
     "node-abi": {
-      "version": "2.5.0",
+      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-2.5.0.tgz",
+      "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-2.7.1.tgz",
-      "integrity": "sha512-9g2twBGSP6wIR5PW7tXvAWnEWKJDH/VskdXp168xsw9VVxpEGov8K4jsP4/VeoC7b2ZAyzckvMCuQuQlw44lXg==",
+      "integrity": "sha512-OV8Bq1OrPh6z+Y4dqwo05HqrRL9YNF7QVMRfq1/pguwKLG+q9UB/Lk0x5qXjO23JjJg+/jqCHSTaG1P3tfKfuw==",
       "optional": true,
       "requires": {
         "semver": "^5.4.1"
@@ -1203,8 +1203,7 @@
     },
     "robotjs": {
       "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/robotjs/-/robotjs-0.5.1.tgz",
+      "resolved": "github:nornagon/robotjs#9a3b161e10897a1269cdccfae5e343334915abc2",
-      "integrity": "sha512-5qKsJs+0rI94WZRr3S0TleDGaiK9yeQ8PIDHwJUXWWnaHuTrbOluvw/WwSm3V7LfeLNcOHcsorP4umgmYzPLFw==",
       "optional": true,
       "requires": {
         "nan": "^2.2.1",

spec/package.json

@@ -32,6 +32,6 @@
     "yargs": "^12.0.5"
   },
   "optionalDependencies": {
-    "robotjs": "^0.5.1"
+    "robotjs": "github:nornagon/robotjs#node-12"
   }
 }