chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/branches.yml

@@ -29,7 +29,7 @@ jobs:
           - ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -67,7 +67,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -106,7 +106,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
           - ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -65,7 +65,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -104,7 +104,7 @@ jobs:
           - windows-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -143,7 +143,7 @@ jobs:
           - ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Set up Python ${{ matrix.python_version }}
@@ -217,7 +217,7 @@ jobs:
         run: |
           echo "${{ secrets.AUR_SSH_KEY }}" | install -Dm600 /dev/stdin ~/.ssh/id_ed25519
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         name: Clone repository
 
       - name: Publish 📦 to the AUR - if necessary