Update dependency typescript to v6

Author: renovate[bot]

packages/errors/package.json

@@ -39,7 +39,7 @@
     "esbuild": "0.27.4",
     "lodash": "4.17.23",
     "ts-node": "10.9.2",
-    "typescript": "5.9.3"
+    "typescript": "6.0.2"
   },
   "dependencies": {}
 }

packages/prometheus-metrics/package.json

@@ -37,7 +37,7 @@
     "sinon": "21.0.3",
     "supertest": "7.2.2",
     "ts-node": "10.9.2",
-    "typescript": "5.9.3"
+    "typescript": "6.0.2"
   },
   "dependencies": {
     "@tryghost/logging": "^4.0.3",

yarn.lock

@@ -7767,6 +7767,11 @@ typescript@5.9.3:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
   integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
+typescript@6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-6.0.2.tgz#0b1bfb15f68c64b97032f3d78abbf98bdbba501f"
+  integrity sha512-bGdAIrZ0wiGDo5l8c++HWtbaNCWTS4UTv7RaTH/ThVIgjkveJt83m74bBHMJkuCbslY8ixgLBVZJIOiQlQTjfQ==
+
 typical@^7.3.0:
   version "7.3.0"
   resolved "https://registry.yarnpkg.com/typical/-/typical-7.3.0.tgz#930376be344228709f134613911fa22aa09617a4"