Update dependency typescript to v5.4.3 (#84470)

* Update dependency typescript to v5.4.3

* refactor: solve TS errors

* refactor: update yarn.lock

* refactor: return type

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Laura Benz <laura.benz@grafana.com>

package.json

@@ -222,7 +222,7 @@
     "tracelib": "1.0.1",
     "ts-jest": "29.1.2",
     "ts-node": "10.9.2",
-    "typescript": "5.3.3",
+    "typescript": "5.4.3",
     "webpack": "5.91.0",
     "webpack-assets-manifest": "^5.1.0",
     "webpack-bundle-analyzer": "4.10.2",