Update dependency read-package-up to v12 (#132)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docs-support/package.json

@@ -64,7 +64,7 @@
     "inter-ui": "^4.0.2",
     "kolay": "^3.5.6",
     "package-up": "^5.0.0",
-    "read-package-up": "^11.0.0",
+    "read-package-up": "^12.0.0",
     "should-handle-link": "^1.2.2",
     "tailwindcss": "^3.0.0"
   },