build(deps): bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/jrl-cmakemodules.yml

@@ -28,7 +28,7 @@ jobs:
     name: Check configuration with git submodules
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
       - run: sudo apt install libboost-all-dev libeigen3-dev python3-numpy python3-scipy
@@ -39,7 +39,7 @@ jobs:
     name: Check configuration without git submodules
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: false
           path: eigenpy

.github/workflows/linux.yml

@@ -32,7 +32,7 @@ jobs:
         python: [3]
         ubuntu: [22, 24]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: 'true'
       - run: |

.github/workflows/reloc.yml

@@ -32,7 +32,7 @@ jobs:
       CMAKE_CXX_COMPILER_LAUNCHER: ccache
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive