chore(deps): update dependency undici to v7

Author: renovate[bot]

libs/providers/flipt-web/package-lock.json

@@ -15,6 +15,6 @@
     "@openfeature/web-sdk": "^1.0.0"
   },
   "devDependencies": {
-    "undici": "^6.13.0"
+    "undici": "^7.0.0"
   }
 }

libs/providers/flipt-web/package.json

@@ -89,6 +89,6 @@
     "ts-jest": "29.2.5",
     "ts-node": "10.9.2",
     "typescript": "5.7.3",
-    "undici": "^5.0.0"
+    "undici": "^7.0.0"
   }
 }