fix: Trying to fix strange pylint error

Pylint is not happy and it's easier to clean the workflow than figure
out what is the is the issue here.

Author: castelao

.github/workflows/pull_request_tests.yml

@@ -29,10 +29,9 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install .[test]
+
+    - name: Install library
+      run: python -m pip install .[test]
+
     - name: Run pytest
-      run: |
-        python -m pytest -v --disable-warnings
+      run: python -m pytest -v --disable-warnings