Bump actions/checkout from 4 to 5 (#172)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Hendrik Ranocha <ranocha@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/CI.yml

@@ -34,7 +34,7 @@ jobs:
           - version: '1.10' # current lts
             os: windows-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -92,7 +92,7 @@ jobs:
       # Instead, we use the more tedious approach described above.
       # At first, we check out the repository and download all artifacts
       # (and list files for debugging).
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/download-artifact@v5
       - run: ls -R
       # Next, we merge the individual coverage files and upload

.github/workflows/DocPreviewCleanup.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: gh-pages
 

.github/workflows/Documenter.yml

@@ -37,7 +37,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'

.github/workflows/Downgrade.yml

@@ -29,7 +29,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}

.github/workflows/FormatCheck.yml

@@ -22,7 +22,7 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install JuliaFormatter and format
         # This will use the latest version by default but you can set the version like so:
         #

.github/workflows/SpellCheck.yml

@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Check spelling
         uses: crate-ci/typos@v1.37.0