Bump actions/checkout from 4 to 5 (#34)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -29,7 +29,7 @@ jobs:
         sudo apt-get install -y zlib1g-dev
     
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Check formatting
       run: |

.github/workflows/tests_clang.yml

@@ -30,7 +30,7 @@ jobs:
         sudo apt-get install -y zlib1g-dev
     
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Build zlib-accel
       run: |

.github/workflows/tests_log_stats.yml

@@ -29,7 +29,7 @@ jobs:
         sudo apt-get install -y zlib1g-dev
     
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Build zlib-accel (DEBUG_LOG=ON, ENABLE_STATISTICS=OFF)
       run: |