chore: align lib types across rxjs and observable packages

Author: JamesHenry

packages/rxjs/tsconfig.json

@@ -9,7 +9,7 @@
     "moduleResolution": "node",
     "stripInternal": true,
     "noEmit": true,
-    "lib": ["esnext", "dom"],
+    "lib": ["es2022", "dom"],
     "target": "esnext",
     "baseUrl": ".",
     "paths": {