Upgrade rollup-plugin-terser

Fixes security issue with `serialize-javascript`

Author: Peter Hegman

package.json

@@ -41,7 +41,7 @@
     "rollup-plugin-commonjs": "^10.0.2",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-replace": "^2.2.0",
-    "rollup-plugin-terser": "^5.1.1",
+    "rollup-plugin-terser": "^5.1.3",
     "rollup-plugin-typescript2": "^0.22.1",
     "rollup-plugin-vue": "^5.0.1",
     "ts-loader": "^6.0.4",