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

Author: renovate[bot]

.github/workflows/codeql-analysis.yml

@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4.3.0
+        uses: actions/checkout@v5.0.0
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/merge.yml

@@ -26,7 +26,7 @@ jobs:
     if: github.event.pull_request.merged == true
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Prepare uv
         run: |
           pip install uv

.github/workflows/verify.yml

@@ -25,7 +25,7 @@ jobs:
       cache-key: ${{ steps.set-key.outputs.cache-key }}
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@v5
@@ -42,7 +42,7 @@ jobs:
     name: Prepare
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@v5
@@ -66,7 +66,7 @@ jobs:
       - prepare
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
@@ -109,7 +109,7 @@ jobs:
       - dependencies_check
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@v5
@@ -149,7 +149,7 @@ jobs:
         python-version: ["3.13"]
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         id: python
         uses: actions/setup-python@v5
@@ -186,7 +186,7 @@ jobs:
       - pytest
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
@@ -214,7 +214,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master
 
@@ -224,7 +224,7 @@ jobs:
     name: Dependency
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Run dependency checker
         run: scripts/dependencies_check.sh debug
 
@@ -238,7 +238,7 @@ jobs:
     #  - mypy # Re-instate mypy when we are ready
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@v5
@@ -284,7 +284,7 @@ jobs:
     #  - mypy # Re-instate mypy when we are ready
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Prepare uv
         run: |
           pip install uv
@@ -327,7 +327,7 @@ jobs:
       - coverage
     steps:
       - name: Check out committed code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@v5