Move minimist to dependency and update it

minimist is needed in production to handle the command line options of
the nimiq executable.

package.json

@@ -67,6 +67,7 @@
     "cpuid-git": "^0.3.1",
     "json5": "^2.1.0",
     "lodash.merge": "^4.6.2",
+    "minimist": "^1.2.8",
     "nan": "^2.16.0",
     "node-deb": "^0.10.7",
     "ws": "^7.0.1"
@@ -106,7 +107,6 @@
     "karma-jasmine": "*",
     "karma-safari-launcher": "^1.0.0",
     "merge2": "^1.2.1",
-    "minimist": "^1.2.0",
     "node-gyp": "^5.0.1",
     "sri-toolbox": "^0.2.0",
     "tslint": "^5.12.1",

yarn.lock

@@ -5503,11 +5503,16 @@ minimist@1.2.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-minimist@^1.1.0, minimist@^1.1.1, minimist@^1.2.0, minimist@^1.2.6:
+minimist@^1.1.0, minimist@^1.1.1, minimist@^1.2.6:
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
   integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
 
+minimist@^1.2.8:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
+  integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
+
 minipass@^2.6.0, minipass@^2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"