Update Python dependencies and fix GitHub Actions workflow

chore: upgrade `actions/checkout` to v5 in .github/workflows/main.yml
chore: upgrade `conda-incubator/setup-miniconda` to v3 .github/workflows/main.yml
chore: upgrade `codecov/codecov-action` to v5 .github/workflows/main.yml
chore: update Ubuntu runner to `ubuntu-latest` .github/workflows/main.yml
chore: add Python 3.8~1.13 to matrix strategy .github/workflows/main.yml
chore: update python version in setup.py to match the one in environment.yml

Author: rcmdnk

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-name: Testing MNE-Features on Ubuntu 20.04
+name: Testing MNE-Features on the latest Ubuntu
 on:
   push:
     branches:
@@ -9,22 +9,21 @@ on:
 
 jobs:
   tests:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     env:
-      PYTHON_VERSION: '3.8'
       CONDA_ENV: 'environment.yml'
     strategy:
       matrix:
-        python-version: [ "3.8" ]
+        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12", "3.13" ]
         numba: [ "on", "off" ]
     continue-on-error: true
     name: python-${{ matrix.python-version }}-numba-${{ matrix.numba }}
     steps:
-    - uses: actions/checkout@v2
-    - uses: conda-incubator/setup-miniconda@v2
+    - uses: actions/checkout@v5
+    - uses: conda-incubator/setup-miniconda@v3
       with:
         activate-environment: 'mne-features'
-        python-version: ${{ env.PYTHON_VERSION }}
+        python-version: ${{ matrix.python-version }}
         environment-file: ${{ env.CONDA_ENV }}
       name: Install Miniconda and create environment
     - if: ${{ matrix.numba == 'off' }}
@@ -46,6 +45,6 @@ jobs:
       run: check-manifest --ignore doc,mne_features/*/tests
       name: Check manifest
     - name: Upload coverage stats
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v5
       with:
         file: ./coverage.xml

setup.py

@@ -57,7 +57,7 @@ def package_tree(pkgroot):
                        'Programming Language :: Python :: 3',
                        ],
           platforms='any',
-          python_requires='>=3.6',
+          python_requires='>=3.8',
           packages=package_tree('mne_features'),
           install_requires=['numpy', 'scipy', 'numba', 'scikit-learn', 'mne',
                             'PyWavelets', 'pandas'],