chore(deps): roll up dependabot updates (#903)

Rolls up the current open Dependabot npm updates:

- #848 esbuild from 0.27.5 to 0.28.0
- #847 undici from 8.0.0 to 8.3.0
- #846 ts-jest from 29.4.9 to 29.4.11
- #841 @biomejs/biome from 2.4.10 to 2.4.15, including the matching
biome.json schema URL update

Validation:

- npm run all

Author: eifinger

biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.4.10/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.4.15/schema.json",
   "assist": {
     "actions": {
       "source": {