Add forge to nightly trigger (#7299)

Add https://github.com/meta-pytorch/forge to nightly trigger

Author: atalman

.github/workflows/trigger_nightly.yml

@@ -23,6 +23,7 @@ on:
           - torchcodec
           - torchvision-extra-decoders
           - torchtitan
+          - forge
           - all
 jobs:
   trigger:
@@ -119,3 +120,11 @@ jobs:
           repository: pytorch/torchtitan
           token: ${{ secrets.GH_PYTORCHBOT_TOKEN }}
           path: torchtitan
+      - name: Trigger nightly forge
+        if: ${{ github.event_name == 'schedule' ||  inputs.domain == 'forge' || inputs.domain == 'all' }}
+        uses: ./.github/actions/trigger-nightly
+        with:
+          ref: main
+          repository: meta-pytorch/forge
+          token: ${{ secrets.GH_PYTORCHBOT_TOKEN }}
+          path: forge