ci(deps): bump actions/checkout from 3 to 4 (#99)

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

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       # Checkout the source code
       - name: "Checkout source code"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Cache node_modules to speed up the process
       - name: "Restore node_modules cache"
@@ -50,7 +50,7 @@ jobs:
     steps:
       # Checkout the source code
       - name: "Checkout source code"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Install PMD
       - name: "Install PMD"

.github/workflows/pr.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       # Checkout the source code
       - name: "Checkout source code"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Install Volta to enforce proper node and package manager versions
       - name: "Install Volta"
@@ -49,7 +49,7 @@ jobs:
     steps:
       # Checkout the source code
       - name: "Checkout source code"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Install Salesforce CLI
       - name: "Install Salesforce CLI"