Update Downgrade.yml

Author: ChrisRackauckas

.github/workflows/Downgrade.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2
         with:
-          version: ${{ matrix.version }}
+          version: ${{ matrix.julia-version }}
       - uses: julia-actions/julia-downgrade-compat@v2
 #        if: ${{ matrix.version == '1.6' }}
         with: