chore(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...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/build.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Cache Dependencies & Build Outputs
         uses: actions/cache@v4
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Extract MSRV from Cargo.toml
         run: |
@@ -104,7 +104,7 @@ jobs:
       options: --security-opt seccomp=unconfined
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Generate code coverage
         run: cargo tarpaulin --verbose --all-features --workspace --timeout 120 --out Xml
@@ -117,7 +117,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -137,7 +137,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -157,6 +157,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Check semver
         uses: obi1kenobi/cargo-semver-checks-action@v2