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Fix php 7.0 duplication

Author: ihor-sviziev

.github/workflows/php.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: ['5.6', '7.0', '7.0', '7.1', '7.2', '7.3', '7.4']
+        php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
     name: Tests with PHP ${{ matrix.php-versions }}
 
     steps: