Blocked CI from running on central repo

CloudNexus CI minutes are communial and our agreements to use them
are in process. This disables calling the jobs on that central CI.

.github/workflows/fmt-lint-test.yml

@@ -3,6 +3,7 @@ run-name: Check the formatting and code
 on: [push]
 jobs:
   check:
+    if: github.repository != 'mycloudnexus/cc-api-sandbox'
     runs-on: ubuntu-24.04
     container:
       image: node:20