Merge pull request #601 from ChrisRackauckas-Claude/downgrade-ci-reenable

Re-enable downgrade CI with genuine test-at-floor (allow_reresolve: false)

Author: ChrisRackauckas

.github/workflows/Downgrade.yml

@@ -31,6 +31,6 @@ jobs:
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         with:
-          allow_reresolve: true
+          allow_reresolve: false
         env:
           GROUP: ${{ matrix.group }}