Fix Github Actions failure

Author: ihor-sviziev

.github/workflows/php.yml

@@ -18,15 +18,9 @@ jobs:
           - "7.3"
           - "7.4"
         dependencies:
+          - "locked"
           - "lowest"
           - "highest"
-        include:
-          - php-version: "8.0"
-            dependencies: "locked"
-            composer-options: "--ignore-platform-reqs"
-          - php-version: "8.0"
-            dependencies: "highest"
-            composer-options: "--ignore-platform-reqs"
     name: Tests with PHP ${{ matrix.php-version }} and ${{ matrix.dependencies }} dependencies
 
     steps: