Fixed test action installation

.gitea/workflows/test_before_merge.yaml

@@ -35,16 +35,11 @@ jobs:
           token: ${{ secrets.CI_ACCESS_TOKEN }}
 
       - name: Setting up Python 3.12
-        shell: bash
         run: |
-          python3.12 -m venv venv
+          python3.12 -m pip install evdev
-          source venv/bin/activate
           bash ./install.sh
           bash ./install.sh -dev
-          python3.12 -m pip install pytest
 
       - name: Testing with pytest
-        shell: bash
         run: |
-          source venv/bin/activate
           python3.12 -m pytest