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-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/publish.yml

@@ -12,7 +12,7 @@ jobs:
     outputs:
       version: ${{ steps.version.outputs.version }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - id: version
       shell: bash
       run: |
@@ -36,7 +36,7 @@ jobs:
     needs: [test, version]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@stable
     - name: Dry-run package creation
       run: cargo package --no-verify

.github/workflows/test.yml

@@ -32,7 +32,7 @@ jobs:
         rust: [stable]
         profile: [dev, release]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@master
       with:
         toolchain: ${{ matrix.rust }}
@@ -44,7 +44,7 @@ jobs:
     name: Build using minimum versions of dependencies
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Nightly Rust
         uses: dtolnay/rust-toolchain@nightly
       - run: cargo +nightly -Z minimal-versions update
@@ -60,14 +60,14 @@ jobs:
     name: Lint with clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - run: cargo clippy --no-deps --all-targets --all-features -- -A unknown_lints -D warnings
   rustfmt:
     name: Check code formatting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@nightly
         with:
           components: rustfmt