build(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/python.yml

@@ -15,7 +15,7 @@ jobs:
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:

.github/workflows/rust.yml

@@ -14,7 +14,7 @@ jobs:
     name: Static code checks
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Check formatting
       run: cargo fmt --all -- --check
 
@@ -25,7 +25,7 @@ jobs:
       image: registry.fedoraproject.org/fedora:42
       options: --privileged
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Install dependencies
       run: dnf install -y cargo clang clippy kernel-devel libbpf-devel llvm-devel rustfmt
     - name: Copy vmlinux.h