update julia versions to test

Author: PetersBas

.github/workflows/ci-test.yml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
 
       matrix:
-        version: ['1.1', '1.2', '1.3', '1.4', '1.5', 'nightly']
+        version: ['1.5', '1.6', '1.7', 'nightly']
         os: [ubuntu-latest]
 
         include: