Bump actions/checkout from 5 to 6

.github/workflows/build-and-test.yml

@@ -19,7 +19,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: kenchan0130/actions-system-info@59699597e84e80085a750998045983daa49274c4
         id: system-info
 
@@ -128,7 +128,7 @@ jobs:
     name: "Test Javascript code"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: browser-actions/setup-chrome@latest
       - uses: browser-actions/setup-firefox@latest
       - run: chrome --version

.github/workflows/dockercompose.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: docker compose build
         run: |

.github/workflows/format.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Verify Python formatting
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: astral-sh/ruff-action@v3
       with:

.github/workflows/linter.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Lint Python
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: astral-sh/ruff-action@v3
       with:
         version: "0.12.0"

.github/workflows/publish-test-results.yml

@@ -17,7 +17,7 @@ jobs:
       # Codecov requires source code to process the coverage file and generate coverage
       # reports
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.workflow_run.head_sha }}
       - name: Download and Extract Artifacts

.github/workflows/towncrier.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Towncrier check
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0