Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/check.yml

@@ -29,7 +29,7 @@ jobs:
  runs-on: "${{ matrix.platform }}-latest"
 
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
  - name: Configure toolchain
  run: |
  rustup toolchain install ${{ matrix.toolchain }} --profile minimal --no-self-update -c clippy
@@ -75,7 +75,7 @@ jobs:
  name: Check only for ${{ matrix.target }}
  runs-on: ${{ matrix.platform }}
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
  - name: Configure toolchain
  run: |
  rustup toolchain install stable --profile minimal --no-self-update --target ${{ matrix.target }}

.github/workflows/release.yml

@@ -73,7 +73,7 @@ jobs:
  continue-on-error: ${{ matrix.experimental }}
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v4
  - uses: actions/cache@v3
  with:
  path: ~/.cargo/registry
@@ -191,7 +191,7 @@ jobs:
  runs-on: ubuntu-latest
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v4
  - uses: actions/cache@v3
  with:
  path: ~/.cargo/bin