⬆️ Update dependency @dprint/json to v0.21.0

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     },
     "devDependencies": {
         "@ben_12/eslint-plugin-dprint": "1.3.3",
-        "@dprint/json": "0.20.0",
+        "@dprint/json": "0.21.0",
         "@dprint/markdown": "0.18.0",
         "@dprint/typescript": "0.95.12",
         "@enormora/eslint-config-base": "0.0.23",