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/ci.yml

@@ -51,7 +51,7 @@ jobs:
           - os: ubuntu-22.04
             target: x86_64-unknown-linux-musl
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.target }}
@@ -68,7 +68,7 @@ jobs:
     name: MSRV
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Extract MSRV
         id: get-msrv
         run: |

.github/workflows/publish.yml

@@ -52,7 +52,7 @@ jobs:
             target: x86_64-unknown-linux-musl
             archive: texlab-x86_64-alpine.tar.gz
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.target }}
@@ -80,7 +80,7 @@ jobs:
     needs: [build]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/download-artifact@v4
       - name: Publish binaries
         run: |
@@ -93,7 +93,7 @@ jobs:
     needs: [github]
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@stable
       - name: Install Tectonic workaround
         run: |