chore(deps): 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] <[email protected]>

.github/workflows/clearcache.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Cleanup
       run: |

.github/workflows/coverage.yml

@@ -10,7 +10,7 @@ jobs:
       options: --security-opt seccomp=unconfined
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Generate code coverage
       run: |

.github/workflows/pages.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Setup mdBook
       uses: peaceiris/actions-mdbook@v1
       with:

.github/workflows/rustbench.yml

@@ -14,7 +14,7 @@ jobs:
   benchmark:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install stable toolchain
       uses: dtolnay/rust-toolchain@stable
@@ -31,7 +31,7 @@ jobs:
     - name: Run Benchmarks on changes
       run: cargo bench --bench bench -- --save-baseline changes
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.base.sha }}
         clean: false

.github/workflows/rustcheck.yml

@@ -11,6 +11,6 @@ jobs:
   cargo_check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: taiki-e/install-action@cargo-hack
     - run: cargo hack check --feature-powerset --no-dev-deps

.github/workflows/rustdoc.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install nightly toolchain
       uses: dtolnay/rust-toolchain@nightly

.github/workflows/rustlib.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install nightly toolchain
       uses: dtolnay/rust-toolchain@nightly
@@ -40,7 +40,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install toolchain
       uses: actions-rs/toolchain@v1

.github/workflows/rustlints.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install stable toolchain
       uses: dtolnay/rust-toolchain@stable
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install stable toolchain
       uses: dtolnay/rust-toolchain@stable

.github/workflows/rustmsrv.yml

@@ -11,7 +11,7 @@ jobs:
   msrv_check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install stable toolchain
       uses: dtolnay/rust-toolchain@stable