Bump @actions/cache to v6.1.0 - handle cache write error due to RO token

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cache",
-  "version": "6.0.0",
+  "version": "6.1.0",
   "private": true,
   "description": "Cache dependencies and build outputs",
   "type": "module",
@@ -24,7 +24,7 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^6.0.1",
+    "@actions/cache": "^6.1.0",
     "@actions/core": "^3.0.1",
     "@actions/exec": "^3.0.0",
     "@actions/io": "^3.0.2"
@@ -52,4 +52,4 @@
   "engines": {
     "node": ">=24"
   }
-}
+}