chore(deps): update dependency svelte to v5.0.0-next.263

Author: renovate[bot]

packages/eslint-plugin-svelte/package.json

@@ -98,7 +98,7 @@
     "sass": "^1.78.0",
     "source-map-js": "^1.2.1",
     "stylus": "^0.63.0",
-    "svelte": "5.0.0-next.249",
+    "svelte": "5.0.0-next.263",
     "svelte-i18n": "^4.0.0",
     "type-coverage": "^2.29.1",
     "yaml": "^2.5.1"