Added Python 3.14 to tests matrix

Author: RobertoRoos

.github/workflows/ci.yml

@@ -35,7 +35,7 @@ jobs:
         - "3.11"
         - "3.12"
         - "3.13"
-#        - "3.14"  # 3.14 will fail because of colors, see #72
+        - "3.14"
 
     steps:
       - uses: actions/checkout@v6

.github/workflows/lint.yml

@@ -29,7 +29,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install .[lint]
+        python -m pip install .[lint] pytest
+      # Also install pytest here, otherwise mypy will complain about our test files
 
     - name: Lint with Ruff
       run: ruff check . --output-format github