chore(deps-dev): drop tsx dependency

Author: JasonWeinzierl

package.json

@@ -90,7 +90,6 @@
     "markdownlint-cli2": "^0.15.0",
     "rxjs": "^7.8.1",
     "tsup": "^8.3.5",
-    "tsx": "^4.19.2",
     "typescript": "~5.6.3",
     "typescript-eslint": "^8.14.0",
     "vitest": "^2.1.5"