Merge pull request #866 from pharo-graphics/ci-P15

Update versions in CI workflow

Author: tinchodias

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
       # Default value means that a failure in one OS cancels all 
       fail-fast: false
       matrix:
-        smalltalk: [ Pharo64-13, Pharo64-14 ]
+        smalltalk: [ Pharo64-14, Pharo64-15 ]
         os: [ macos-latest, windows-latest ]
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.smalltalk }} on ${{ matrix.os }}