Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/benchmark.yml

@@ -14,7 +14,7 @@ jobs:
     name: Run Benchmarks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
       - name: Cache cargo registry

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
           df -h
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -63,7 +63,7 @@ jobs:
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
           df -h
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -98,7 +98,7 @@ jobs:
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
           df -h
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -134,7 +134,7 @@ jobs:
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
           df -h
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -158,7 +158,7 @@ jobs:
     name: Check MSRV
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install MSRV Rust
         uses: dtolnay/[email protected]
       - name: Check
@@ -168,7 +168,7 @@ jobs:
     name: SemVer Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
       - name: Install cargo-semver-checks

.github/workflows/codeql.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Using a slightly different action for Rust if CodeQL is too heavy/unsupported?
     # No, let's use the official one but be simpler.

.github/workflows/coverage.yml

@@ -18,7 +18,7 @@ jobs:
       image: xd009642/tarpaulin:0.27.3
       options: --security-opt seccomp=unconfined
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Generate code coverage
         run: |
           cargo +nightly tarpaulin --verbose --all-features --workspace --timeout 120 --out Xml

.github/workflows/deploy-cookbook.yml

@@ -15,7 +15,7 @@ jobs:
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install mdBook
         uses: peaceiris/actions-mdbook@v2

.github/workflows/publish.yml

@@ -23,7 +23,7 @@ jobs:
     name: Publish
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable

.github/workflows/release-binaries.yml

@@ -25,7 +25,7 @@ jobs:
             extension: ""
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable

.github/workflows/security.yml

@@ -20,7 +20,7 @@ jobs:
     name: Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
       - uses: actions/cache@v4
@@ -39,7 +39,7 @@ jobs:
     name: License & Bans
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install cargo-deny
         uses: taiki-e/install-action@cargo-deny
       - name: Run cargo deny