~ changes in automation

Author: Samuel Akopyan

.github/workflows/main.yml

@@ -45,6 +45,19 @@ jobs:
           composer --version
           phpunit --version
 
+       - name: Install PHPUnit
+        run: composer require phpunit/phpunit ^7
+
+      - name: Check again some packages if they are installed
+        run: |
+          composer --version
+          phpunit --version
+
       - name: Runt PHPUnit tests
         run: composer tests
 
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