Merge pull request #57 from Chris53897/feature/fix-ci-deprecations

chore: fix ci deprecations

Author: paragonie-security

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
         phpunit-versions: ['6.5.14']
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -39,7 +39,7 @@ jobs:
         phpunit-versions: ['7.5.20']
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -68,7 +68,7 @@ jobs:
         phpunit-versions: ['latest']
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2