tweak ci

Author: jw3126

.github/workflows/CI.yml

@@ -10,12 +10,14 @@ jobs:
     name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
     runs-on: ${{ matrix.os }}
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         version:
           - '1.0'
           - '1.3'
           - '1.5'
+          - '1.6'
+          - '1'
           - 'nightly'
         os:
           - ubuntu-latest