Bump actions/checkout from 4.1.4 to 4.1.6 (#221)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.4 to 4.1.6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4.1.4...v4.1.6)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/coverage.yaml

@@ -23,7 +23,7 @@ jobs:
       RUST_BACKTRACE: full
 
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
         with:
           persist-credentials: false
 

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
       - uses: dtolnay/rust-toolchain@stable
       - run: cargo test
 
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
       - uses: dtolnay/rust-toolchain@stable
       - run: cargo test --features redpallas
 
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
         with:
           persist-credentials: false
       - uses: dtolnay/rust-toolchain@stable
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
         with:
           persist-credentials: false
       - uses: dtolnay/rust-toolchain@stable
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-latest
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v4.1.4
+      - uses: actions/checkout@v4.1.6
       - uses: reviewdog/action-actionlint@v1.46.0
         with:
           level: warning