build(deps): bump @prisma/generator-helper from 5.8.1 to 5.12.1

Bumps [@prisma/generator-helper](https://github.com/prisma/prisma/tree/HEAD/packages/generator-helper) from 5.8.1 to 5.12.1.
- [Release notes](https://github.com/prisma/prisma/releases)
- [Commits](https://github.com/prisma/prisma/commits/5.12.1/packages/generator-helper)

---
updated-dependencies:
- dependency-name: "@prisma/generator-helper"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -28,7 +28,7 @@
         "url": "https://github.com/valentinpalkovic/prisma-json-schema-generator/issues"
     },
     "dependencies": {
-        "@prisma/generator-helper": "5.8.1",
+        "@prisma/generator-helper": "5.12.1",
         "@prisma/internals": "5.8.1"
     },
     "devDependencies": {