set version of downgrade action back to v1

.github/workflows/Downgrade.yml

@@ -29,7 +29,7 @@ jobs:
     # We could also include the Julia version as in
     # name: ${{ matrix.trixi_test }} - ${{ matrix.os }} - Julia ${{ matrix.version }} - ${{ matrix.arch }} - ${{ github.event_name }}
     # to be more specific. However, that requires us updating the required CI tests whenever we update Julia.
-    name: Downgrade ${{ matrix.trixi_test }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    name: Downgrade ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -50,7 +50,7 @@ jobs:
           arch: ${{ matrix.arch }}
       - run: julia -e 'using InteractiveUtils; versioninfo(verbose=true)'
       - uses: julia-actions/cache@v1
-      - uses: cjdoris/julia-downgrade-compat-action@v1.0.7
+      - uses: cjdoris/julia-downgrade-compat-action@v1
         with:
           skip: UUIDs
       - uses: julia-actions/julia-buildpkg@v1