chore(deps): update dependency which to v6

Author: renovate[bot]

package.json

@@ -106,7 +106,7 @@
         "string-width": "^8.0.0",
         "strip-ansi": "^7.1.0",
         "tiged": "~2.12.7",
-        "which": "^5.0.0",
+        "which": "^6.0.0",
         "widest-line": "^5.0.0",
         "wrap-ansi": "^9.0.0"
     },

yarn.lock

@@ -2371,7 +2371,7 @@ __metadata:
     typescript: "npm:^5.8.3"
     typescript-eslint: "npm:^8.31.0"
     vitest: "npm:^3.0.0"
-    which: "npm:^5.0.0"
+    which: "npm:^6.0.0"
     widest-line: "npm:^5.0.0"
     wrap-ansi: "npm:^9.0.0"
   bin:
@@ -9494,6 +9494,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"which@npm:^6.0.0":
+  version: 6.0.0
+  resolution: "which@npm:6.0.0"
+  dependencies:
+    isexe: "npm:^3.1.1"
+  bin:
+    node-which: bin/which.js
+  checksum: 10c0/fe9d6463fe44a76232bb6e3b3181922c87510a5b250a98f1e43a69c99c079b3f42ddeca7e03d3e5f2241bf2d334f5a7657cfa868b97c109f3870625842f4cc15
+  languageName: node
+  linkType: hard
+
 "why-is-node-running@npm:^2.3.0":
   version: 2.3.0
   resolution: "why-is-node-running@npm:2.3.0"