Bump elm-test from 0.19.1-revision12 to 0.19.1-revision15

Bumps [elm-test](https://github.com/rtfeldman/node-test-runner) from 0.19.1-revision12 to 0.19.1-revision15.
- [Release notes](https://github.com/rtfeldman/node-test-runner/releases)
- [Changelog](https://github.com/rtfeldman/node-test-runner/blob/master/CHANGELOG.md)
- [Commits](rtfeldman/node-test-runner@0.19.1-revision12...0.19.1-revision15)

---
updated-dependencies:
- dependency-name: elm-test
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -3,7 +3,7 @@
     "elm-live": "^4.0.2",
     "elm-review": "^2.13.2",
     "elm-tailwind-modules": "^0.5.0",
-    "elm-test": "^0.19.1-revision12",
+    "elm-test": "^0.19.1-revision15",
     "postcss": "^8.5.3",
     "tailwindcss": "^3.4.17"
   },