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]>

Author: dependabot[bot]

.github/workflows/pre-release-tests.yml

@@ -16,7 +16,7 @@ jobs:
     name: integration-tests-against-rc
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         run: cargo build --verbose
       - name: Get the latest Meilisearch RC

.github/workflows/publish.yml

@@ -9,7 +9,7 @@ jobs:
     name: Rust project
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: hecrj/setup-rust-action@master
         with:
           rust-version: stable

.github/workflows/tests.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     name: integration-tests
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         run: cargo build --verbose
       - name: Meilisearch (latest version) setup with Docker
@@ -37,7 +37,7 @@ jobs:
     name: clippy-check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install clippy
         run: rustup component add clippy
       - name: Run linter (clippy)
@@ -48,23 +48,23 @@ jobs:
     name: rust-format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Run formatter
         run: cargo fmt --all -- --check
 
   readme_check:
     name: readme-check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Check the README.md file is up-to-date
         run: sh scripts/check-readme.sh
 
   wasm_build:
     name: wasm-build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         run: |
           rustup target add wasm32-unknown-unknown
@@ -73,7 +73,7 @@ jobs:
     name: Yaml linting check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Yaml lint check
         uses: ibiqlik/action-yamllint@v3
         with: