fix in CI.yml

Author: carstenbauer

.github/workflows/CI.yml

@@ -17,10 +17,6 @@ jobs:
           - ubuntu-latest
         arch:
           - x64
-        # 32-bit Julia binaries are not available on macOS
-        exclude:
-          - os: macOS-latest
-            arch: x86
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1