WIP-CI: testing solution x10

Author: 9and3

.github/workflows/test-pass.yml

@@ -28,7 +28,9 @@ jobs:
         run: conda env create -f environment.yml
 
       - name: Activate diff_check conda environment
-        run: conda activate diff_check | "name:diff_check" >> $GITHUB_ENV
+        run: conda activate diff_check
+      - name: Set up environment variable
+        run: echo "name: diff_check" >> $GITHUB_ENV
 
       - name: Verify Python version
         run: conda run --name diff_check python --version