chore(deps): update dependency @urql/exchange-graphcache to v8

Author: renovate[bot]

packages/plugins/typescript/urql-graphcache/package.json

@@ -37,7 +37,7 @@
     "test": "jest --no-watchman --config ../../../../jest.config.js"
   },
   "peerDependencies": {
-    "@urql/exchange-graphcache": "^5.2.0 || ^6.0.0 || ^7.0.0",
+    "@urql/exchange-graphcache": "^5.2.0 || ^6.0.0 || ^7.0.0 || ^8.0.0",
     "graphql": "^0.8.0 || ^0.9.0 || ^0.10.0 || ^0.11.0 || ^0.12.0 || ^0.13.0 || ^14.0.0 || ^15.0.0 || ^16.0.0",
     "graphql-tag": "^2.0.0"
   },