workflows/hil.yml: Don't run the scheduled HIL workflow on forks. (#6753)

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

.github/workflows/hil.yml

@@ -18,7 +18,7 @@ jobs:
   gen_chunks:
     if: |
       contains(github.event.pull_request.labels.*.name, 'hil_test') ||
-      github.event_name == 'schedule'
+      (github.event_name == 'schedule' && github.repository == 'espressif/arduino-esp32')
     name: Generate Chunks matrix
     runs-on: ubuntu-latest
     outputs: