github-actions(deps): bump actions/checkout from 2.3.1 to 4.2.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.1 to 4.2.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.3.1...v4.2.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/integrate.yaml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2.3.1"
+        uses: "actions/checkout@v4.2.1"
         with:
           fetch-depth: 0
 
@@ -48,7 +48,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2.3.1"
+        uses: "actions/checkout@v4.2.1"
 
       - name: "Install PHP with extensions"
         uses: "shivammathur/setup-php@v2"
@@ -102,7 +102,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2.3.1"
+        uses: "actions/checkout@v4.2.1"
 
       - name: "Lint YAML files"
         uses: "ibiqlik/action-yamllint@v1"
@@ -246,7 +246,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2.3.1"
+        uses: "actions/checkout@v4.2.1"
 
       - name: "Install PHP with extensions"
         uses: "shivammathur/setup-php@v2"
@@ -310,7 +310,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2.3.1"
+        uses: "actions/checkout@v4.2.1"
 
       - name: "Install PHP with extensions"
         uses: "shivammathur/setup-php@v2"