fix(deps): update dependency typescript to v5.9.3

Author: renovate[bot]

functions-templates/typescript/hello-world/package-lock.json

@@ -16,6 +16,6 @@
   "dependencies": {
     "@netlify/functions": "^3.0.4",
     "@types/node": "^22.0.0",
-    "typescript": "^4.0.0"
+    "typescript": "^5.0.0"
   }
 }

functions-templates/typescript/hello-world/package.json

@@ -17,6 +17,6 @@
   "dependencies": {
     "@netlify/functions": "^3.0.4",
     "@types/node": "^22.0.0",
-    "typescript": "^4.5.5"
+    "typescript": "^5.0.0"
   }
 }

functions-templates/typescript/scheduled-function/package.json

@@ -211,7 +211,7 @@
     "temp-dir": "3.0.0",
     "tree-kill": "1.2.2",
     "tsx": "4.20.6",
-    "typescript": "5.8.3",
+    "typescript": "5.9.3",
     "typescript-eslint": "8.45.0",
     "verdaccio": "6.2.1",
     "vitest": "3.2.4"