Update CI to newer python and action versions

Author: ramenguy99

.github/workflows/lint.yml

@@ -7,12 +7,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: psf/black@23.3.0
+      - uses: psf/black@25.1.0
   isort:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: 3.9
       - uses: isort/isort-action@master

.github/workflows/tests.yml

@@ -13,14 +13,8 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-13]
-        python-version: ["3.7", "3.10"]
-        # exclude:  # Python < v3.8 does not support Apple Silicon ARM64.
-        #   - python-version: "3.7"
-        #     os: macos-latest
-        # include:  # So run those legacy versions on Intel CPUs.
-        #   - python-version: "3.7"
-        #     os: macos-13
+        os: [ubuntu-latest, macos-14]
+        python-version: ["3.9", "3.12"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}