Upgrade Julia version

Author: limarta

.github/workflows/ContinuousIntegration.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        julia-version: ['1', '1.3', '1.6', 'nightly']
+        version: ['1', '1.6', 'nightly']
         julia-arch: [x64]
         os: [ubuntu-latest]
     steps: