chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/code_coverage.yaml

@@ -11,7 +11,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@master
         with:
           php-version: 8.3

.github/workflows/coding_standards.yaml

@@ -10,7 +10,7 @@ jobs:
   coding_standards:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: shivammathur/setup-php@master
       with:
         php-version: 8.3

.github/workflows/phpstan.yaml

@@ -10,7 +10,7 @@ jobs:
   phpstan:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: shivammathur/setup-php@master
       with:
         php-version: 8.3

.github/workflows/release.yaml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
       - uses: "actions/setup-node@v3"
         with: