chore(ci): Update project directory in CI workflow

Updated the project directory path in the CI workflow to the correct location for the Flutter project. Previously, it was set to "nairobi-traffic-pcb" but it should be "mobile/nairobitrafficpcb" to match the actual project structure.

Signed-off-by: Rodney Osodo <[email protected]>

.github/workflows/ci.yaml

@@ -24,7 +24,7 @@ jobs:
           channel: "beta"
 
       - name: Enter to the flutter project directory
-        run: cd nairobi-traffic-pcb
+        run: cd mobile/nairobitrafficpcb
 
       - name: Get flutter dependencies
         run: flutter pub get