Update CI.yml

Make tests to always use latest Julia version.

Author: luraess

.github/workflows/CI.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: ['1.7']
+        julia-version: ['1']
         julia-arch: [x64]
         os: [ubuntu-latest]