added default working directory

Author: DaiseyD

.github/workflows/main_backendbluenps.yml

@@ -13,6 +13,10 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    defaults:
+        run:
+          working-directory:
+            ./bluenpsbackend
 
     steps:
       - uses: actions/checkout@v4