chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Setup Python
       uses: actions/setup-python@v6
@@ -94,7 +94,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Python
         uses: actions/setup-python@v6
@@ -153,7 +153,7 @@ jobs:
           install: true
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Download Wheel from GitHub
         uses: actions/download-artifact@v5
@@ -227,7 +227,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Download Single-Platform Packages
         uses: actions/download-artifact@v4