fix: lock rollup-plugin-commonjs dependency at 8.3.0 (#658)

Closes #657

Author: avatsaev

package.json

@@ -46,7 +46,7 @@
     "rimraf": "^2.6.1",
     "rollup": "^0.55.0",
     "rollup-plugin-cleanup": "^2.0.0",
-    "rollup-plugin-commonjs": "^8.2.1",
+    "rollup-plugin-commonjs": "8.3.0",
     "rollup-plugin-license": "^0.6.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rxjs": "^5.5.0",

yarn.lock

@@ -3135,9 +3135,9 @@ rollup-plugin-cleanup@^2.0.0:
     magic-string "^0.22.4"
     rollup-pluginutils "^2.0.1"
 
-rollup-plugin-commonjs@^8.2.1:
-  version "8.2.6"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.2.6.tgz#27e5b9069ff94005bb01e01bb46a1e4873784677"
+rollup-plugin-commonjs@8.3.0:
+  version "8.3.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.3.0.tgz#91b4ba18f340951e39ed7b1901f377a80ab3f9c3"
   dependencies:
     acorn "^5.2.1"
     estree-walker "^0.5.0"