fix: Cap8 peerDependency for pnpm compatibility

To fix the error below when using pnpm v10 (error on v10, warning on v9 and below)

ERR_PNPM_INVALID_PEER_DEPENDENCY_SPECIFICATION  The peerDependencies field named '@capacitor/core' of package '@capacitor/geolocation' has an invalid value: 'next'

The values in peerDependencies should be either a valid semver range, a `workspace:` spec, or a `catalog:` spec

Author: OS-pedrogustavobilro

packages/capacitor-plugin/package.json

@@ -72,7 +72,7 @@
     "typescript": "~5.4.5"
   },
   "peerDependencies": {
-    "@capacitor/core": "next"
+    "@capacitor/core": ">=8.0.0-alpha.2"
   },
   "prettier": "@ionic/prettier-config",
   "swiftlint": "@ionic/swiftlint-config",