Update actions.

Author: davidlehn

.github/workflows/main.yaml

@@ -11,9 +11,9 @@ jobs:
         python-version:
           - '3.14'
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Use Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'
@@ -43,9 +43,9 @@ jobs:
           - 'pypy3.10'
         loader: [requests, aiohttp]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Use Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'