Merge unit and functional tests

Author: Kirill Nesmeyanov

.github/workflows/tests.yml

@@ -46,7 +46,5 @@ jobs:
           timeout_minutes: 5
           max_attempts: 5
           command: composer update --${{ matrix.stability }} --ignore-platform-reqs --prefer-dist --no-interaction --no-progress
-      - name: Execute Unit Tests
-        run: composer test:unit
-      - name: Execute Functional Tests
-        run: composer test:functional
+      - name: Execute Tests
+        run: composer test