fix(dependencies): update dependency get-stdin to v9

Author: renovate[bot]

package-lock.json

@@ -41,7 +41,7 @@
   "dependencies": {
     "fp-ts": "^2.16.5",
     "fs-extra": "^11.2.0",
-    "get-stdin": "^8.0.0",
+    "get-stdin": "^9.0.0",
     "js-yaml": "^4.1.0",
     "mathjax-node": "^2.1.1",
     "mime": "^3.0.0",