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

Author: renovate[bot]

package-lock.json

@@ -58,7 +58,7 @@
   "devDependencies": {
     "@mitsue/eslint-config": "4.1.0",
     "@rollup/plugin-commonjs": "24.0.0",
-    "@rollup/plugin-json": "5.0.2",
+    "@rollup/plugin-json": "6.0.0",
     "@rollup/plugin-node-resolve": "15.0.1",
     "@rollup/plugin-typescript": "10.0.1",
     "@rollup/plugin-terser": "0.2.1",