chore(deps): update dependency @rollup/plugin-json to v6

Author: renovate[bot]

package-lock.json

@@ -60,7 +60,7 @@
     "@donkeyclip/motorcortex-player": "2.10.8",
     "@rollup/plugin-babel": "5.3.1",
     "@rollup/plugin-commonjs": "21.1.0",
-    "@rollup/plugin-json": "4.1.0",
+    "@rollup/plugin-json": "6.0.0",
     "@rollup/plugin-node-resolve": "13.3.0",
     "@size-limit/preset-big-lib": "6.0.4",
     "babel-loader": "8.3.0",