GH Actions: Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/end-to-end-tests.yml

@@ -39,7 +39,7 @@ jobs:
         run: git config --global core.autocrlf input
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2

.github/workflows/happy-new-year.yml

@@ -49,7 +49,7 @@ jobs:
         run: "echo current year: ${{ steps.year.outputs.NEW_YEAR }} - previous year: ${{ steps.year.outputs.PREVIOUS_YEAR }}"
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ steps.branches.outputs.BASE }}
 

.github/workflows/label-new-prs.yml

@@ -38,7 +38,7 @@ jobs:
     steps:
       # Checkout is needed to use the `use_local_config` option.
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Verify changes to the labeling logic
         uses: srvaroa/labeler@v1

.github/workflows/quicktest.yml

@@ -49,7 +49,7 @@ jobs:
         run: git config --global core.autocrlf input
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2

.github/workflows/reusable-build-phar.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2

.github/workflows/test.yml

@@ -114,7 +114,7 @@ jobs:
         run: git config --global core.autocrlf input
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: "libxml2: find the latest relevant tag"
         if: ${{ matrix.libxml_minor }}
@@ -310,7 +310,7 @@ jobs:
         run: git config --global core.autocrlf input
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup ini config
         if: ${{ matrix.custom_ini == true && matrix.os != 'windows-latest' }}

.github/workflows/validate.yml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2
@@ -52,7 +52,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Validate the XSD file.
       - name: Validate XSD against schema
@@ -99,7 +99,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Updating the lists can fail intermittently, typically after Microsoft has released a new package.
       # This should not be blocking for this job, so ignore any errors from this step.
@@ -157,7 +157,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up problem matcher
         uses: lumaxis/shellcheck-problem-matchers@v2