Try this

Author: paragonie-security

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-latest']
-        php-versions: ['7.0']
+        php-versions: ['7.0', '7.1', '7.2', '7.3']
         phpunit-versions: ['7.5.20']
     steps:
       - name: Checkout
@@ -37,8 +37,8 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-latest']
-        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
-        phpunit-versions: ['latest']
+        php-versions: ['7.4', '8.0', '8.1', '8.2']
+        phpunit-versions: ['9.6.27']
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -70,7 +70,7 @@ jobs:
         phpunit-versions: ['latest']
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2