chore(deps): update dependency @rollup/plugin-json to v6.1.0

Author: renovate[bot]

json-modules/package-lock.json

@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "@open-wc/testing": "2.5.33",
-    "@rollup/plugin-json": "6.0.1",
+    "@rollup/plugin-json": "6.1.0",
     "@web/dev-server": "0.2.1",
     "@web/dev-server-rollup": "0.5.0",
     "@web/test-runner": "0.16.0"