cicd: fixed syntax

Author: cuprumtan

.github/workflows/mamonsu-tests-master.yml

@@ -57,7 +57,7 @@ jobs:
         run: docker exec $( echo "${{ matrix.docker_os }}" | sed 's/://' | sed 's/\.//' ) mkdir -p -m 755 /mamonsu/
       - run: docker cp . $( echo "${{ matrix.docker_os }}" | sed 's/://' | sed 's/\.//' ):/mamonsu
       - name: Install prequisites
-        if: "(matrix.pg_version != '9.6' && (matrix.docker_os == 'centos:8')"
+        if: "(matrix.pg_version != '9.6') && (matrix.docker_os == 'centos:8')"
         run: docker exec $( echo "${{ matrix.docker_os }}" | sed 's/://' | sed 's/\.//' ) bash /mamonsu/github-actions-tests/tests.sh --os="${{ matrix.docker_os }}" --pg-version="${{ matrix.pg_version }}"
 
       - name: Build and install Mamonsu