Update nightly.yml

Author: Tsianmy

.github/workflows/nightly.yml

@@ -6,12 +6,15 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
+  branch: develop
 
 jobs:
   create_release:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+      with:
+        ref: ${{ env.branch }}
     - name: Run build
       run: |
         cargo build --verbose --release