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] <[email protected]>

Author: dependabot[bot]

.github/workflows/Semgrep.yml

@@ -24,11 +24,11 @@ jobs:
     steps:
         # Checkout the repository.
       - name: Clone source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
         # Checkout custom rules
       - name: Checkout custom rules
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: JuliaComputing/semgrep-rules-julia
           ref: main

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
           - os: ubuntu-latest
             prefix: xvfb-run
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -55,7 +55,7 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'