build(deps): bump actions/checkout from 6 to 7 (#416)

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.

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

Author: dependabot[bot]

.github/workflows/coding-standard.yml

@@ -21,7 +21,7 @@ jobs:
           git config --global core.eol lf
 
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2

.github/workflows/static-analysis.yml

@@ -21,7 +21,7 @@ jobs:
           git config --global core.eol lf
 
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2

.github/workflows/testing.yml

@@ -21,7 +21,7 @@ jobs:
           git config --global core.eol lf
 
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2