chore(ci)(deps): Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...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/coverage.yaml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1

.github/workflows/nix_build.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v4

.github/workflows/release.yaml

@@ -51,7 +51,7 @@ jobs:
     steps:
 
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Cache Project
         uses: Swatinem/rust-cache@v2

.github/workflows/run_test_suite.yaml

@@ -22,7 +22,7 @@ jobs:
           - nightly
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Smarter caching action, speeds up build times compared to regular cache:
       # https://github.com/Swatinem/rust-cache
@@ -64,7 +64,7 @@ jobs:
           - nightly
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Environment Packages
         run: |