attempt to fix compat check

Author: lkdvos

.github/workflows/CompatCheck.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        downgrade_mode: ['alldeps']
+        downgrade_mode: ['deps']
         julia-version: ['1.10', '1']
     steps:
       - uses: actions/checkout@v5
@@ -31,5 +31,6 @@ jobs:
         with:
           mode: ${{ matrix.downgrade_mode }}
           skip: Random, LinearAlgebra, Test, Combinatorics
+          julia-version: ${{ matrix.julia_version }}
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1