build(deps): bump actions/checkout from 4 to 5 (#229)

.github/workflows/python.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         python-version: ['3.11']
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
@@ -39,7 +39,7 @@ jobs:
         - '3.11'
       fail-fast: false
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
@@ -75,7 +75,7 @@ jobs:
   install:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v6
       with: {python-version: 3.9}
     - run: '! ical2vdir --help'
@@ -89,7 +89,7 @@ jobs:
       matrix:
         python-version: ['3.9']
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}