[MISC] update a few dependencies in package.json

package.json

@@ -27,17 +27,17 @@
   "devDependencies": {
     "@types/jest": "^23.3.12",
     "cpx": "^1.5.0",
+    "git-rev-sync": "^1.12.0",
     "jest": "^23.6.0",
     "live-server": "^1.2.1",
     "npm-run-all": "^4.1.5",
     "rollup": "^1.6.0",
-    "rollup-plugin-typescript2": "^0.19.3",
+    "rollup-plugin-typescript2": "^0.20.1",
     "sass": "^1.16.1",
     "snabbdom-to-html": "^5.1.1",
     "source-map-support": "^0.5.10",
     "ts-jest": "^23.10.5",
     "typescript": "^3.2.2",
-    "git-rev-sync": "^1.12.0",
     "uglify-es": "^3.3.9"
   },
   "dependencies": {