Fix url (#233)

BREAKING CHANGE

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- Chores
- Updated the project’s repository URL to its new GitHub location to
reflect current hosting.
  - No changes to features, behavior, or dependencies.
  - Installation and usage remain unaffected.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: csikb

package.json

@@ -58,7 +58,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/BSStudio/bss-web-backend.git"
+    "url": "https://github.com/BSStudio/bss-web-graphql-backend.git"
   },
   "engines": {
     "node": "22.20.0"