bump pnpm to v8

package.json

@@ -65,7 +65,7 @@
         "type-fest": "^3.5.3",
         "typescript": "^4.9.4"
     },
-    "packageManager": "pnpm@7.13.4",
+    "packageManager": "pnpm@8.1.1",
     "pnpm": {
         "patchedDependencies": {
             "eslint-plugin-path-alias@1.0.0": "patches/eslint-plugin-path-alias@1.0.0.patch",
@@ -92,6 +92,7 @@
         "sourceDir": "./dist/extension-v2-unpacked"
     },
     "engines": {
-        "node": ">=18"
+        "node": ">=18",
+        "pnpm": ">=8"
     }
 }