Update build_and_test.yaml

.github/workflows/build_and_test.yaml

@@ -73,7 +73,7 @@ jobs:
     - name: Run tests
       shell: bash
       run: |
-        if [ "${{ runner.os }}" -ne "macOS" ]; then
+        if [ "${{ runner.os }}" != "macOS" ]; then
           export BLENDER_BIN_PATH=${PWD}/blender/$(ls -AU blender | head -1)
           export PATH=$PATH:${BLENDER_BIN_PATH}
         else