chore(editor): Bump Typescript to v5.6 (#3649)

Author: DafyddLlyr

editor.planx.uk/package.json

@@ -162,7 +162,7 @@
     "stream-browserify": "^3.0.0",
     "ts-jest": "^29.1.3",
     "tsconfig-paths-webpack-plugin": "^4.0.1",
-    "typescript": "^5.4.3",
+    "typescript": "^5.6.2",
     "vite-tsconfig-paths": "^4.3.2",
     "vitest": "^1.6.0",
     "vitest-axe": "1.0.0-pre.3",