Adjust matrix ref

I'll need to make sure this doesn't break the nightly cron.

Author: iluuu1994

.github/workflows/push.yml

@@ -41,7 +41,7 @@ jobs:
       - uses: actions/checkout@v6
       - name: Generate Matrix
         id: set-matrix
-        run: php .github/nightly_matrix.php "${{ github.event_name }}" "${{ github.run_attempt }}" "${{ github.head_ref || github.ref_name }}" '${{ toJSON(github.event.pull_request.labels) }}'
+        run: php .github/nightly_matrix.php "${{ github.event_name }}" "${{ github.run_attempt }}" "${{ github.ref }}" '${{ toJSON(github.event.pull_request.labels) }}'
   PUSH:
     needs: GENERATE_MATRIX
     name: ${{ fromJson(needs.GENERATE_MATRIX.outputs.branches)[0].ref }}

.github/workflows/root.yml

@@ -31,7 +31,7 @@ jobs:
             nightly-
       - name: Generate Matrix
         id: set-matrix
-        run: php .github/nightly_matrix.php "${{ github.event_name }}" "${{ github.run_attempt }}" "${{ github.head_ref || github.ref_name }}"
+        run: php .github/nightly_matrix.php "${{ github.event_name }}" "${{ github.run_attempt }}" "${{ github.ref }}"
   NIGHTLY:
     needs: GENERATE_MATRIX
     name: ${{ matrix.branch.ref }}