Update typescript requirement from ^5.4.5 to ^5.6.3

Updates the requirements on [typescript](https://github.com/microsoft/TypeScript) to permit the latest version.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release.yml)
- [Commits](microsoft/TypeScript@v5.4.5...v5.6.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

addon/package.json

@@ -85,7 +85,7 @@
     "prettier-plugin-ember-template-tag": "^2.0.2",
     "rollup": "^4.21.0",
     "rollup-plugin-copy": "^3.5.0",
-    "typescript": "^5.4.5"
+    "typescript": "^5.6.3"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"

type-tests/package.json

@@ -14,6 +14,6 @@
     "dom-element-descriptors": "^0.5.0",
     "ember-source": "~5.9.0",
     "expect-type": "^0.15.0",
-    "typescript": "^5.1.3"
+    "typescript": "^5.6.3"
   }
 }