MAINT: [CI] Update runner version to latest (#102)

Author: Lucas-C

.github/workflows/github-ci.yaml

@@ -19,7 +19,7 @@ on:
 jobs:
   tests:
     name: pytest on ${{ matrix.python-version }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
@@ -53,7 +53,7 @@ jobs:
 
   codestyle:
     name: Check code style issues
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
     - name: Checkout Code
       uses: actions/checkout@v4

tests/conftest.py

@@ -13,7 +13,7 @@
 except ImportError:  # Fallback when not available (< Python 3.11):
     from contextlib import contextmanager
 
-    @contextmanager
+    @contextmanager  # type: ignore
     def chdir(dir_path):
         """Non thread-safe context manager to change the current working directory."""
         cwd = Path.cwd()