Update dependency dprint/dprint-plugin-json to v0.20.0

Author: renovate[bot]

dprint.json

@@ -13,7 +13,7 @@
   "excludes": ["dist/", "node_modules/", ".git/", "vendor/"],
   "plugins": [
     "https://plugins.dprint.dev/typescript-0.93.4.wasm",
-    "https://plugins.dprint.dev/json-0.19.4.wasm",
+    "https://plugins.dprint.dev/json-0.20.0.wasm",
     "https://plugins.dprint.dev/markdown-0.17.8.wasm",
     "https://plugins.dprint.dev/toml-0.6.4.wasm",
     "https://plugins.dprint.dev/g-plane/malva-v0.11.1.wasm",