chore(deps): update dependency rollup-plugin-terser to v7

Author: renovate-bot

package.json

@@ -97,7 +97,7 @@
     "rimraf": "3.0.2",
     "rollup": "2.17.1",
     "rollup-plugin-copy": "3.3.0",
-    "rollup-plugin-terser": "6.1.0",
+    "rollup-plugin-terser": "7.0.0",
     "tslib": "2.0.0",
     "typescript": "3.9.5",
     "typesync": "0.7.0"