Fix GHA

Signed-off-by: Stefan Marr <[email protected]>

Author: smarr

.github/workflows/ci.yml

@@ -71,8 +71,7 @@ jobs:
       - name: Integration Tests
         if: matrix.id == 'basic'
         run: |
-          python -m pip install --upgrade pip
-          pip install pytest
+          pip install pyyaml
           export VM=./som.sh
           export CLASSPATH=Smalltalk
           export TEST_EXPECTATIONS=./integration-tests.yml