Fix CI: Remove redundant gpstop and simplify test environment

Author: tuhaihe

.github/workflows/binary-swap-check.yml

@@ -613,8 +613,6 @@ jobs:
             fi
             cd ${GITHUB_WORKSPACE}/gpAux/gpdemo
             make cluster
-            source gpdemo-env.sh
-            gpstop -a
           "
 
           # Now run the test script
@@ -625,10 +623,10 @@ jobs:
           # 4. Dump & Verify
           
           su - gpadmin -c "
-            export COORDINATOR_DATA_DIRECTORY=${GITHUB_WORKSPACE}/gpAux/gpdemo/datadirs/qddir/demoDataDir-1
-            export PGPORT=7000
+            cd ${GITHUB_WORKSPACE}/gpAux/gpdemo
+            source gpdemo-env.sh
             cd ${SRC_DIR}/src/test/binary_swap
-            ./test_binary_swap.sh -b ${BASELINE_INSTALL_DIR} -c ${CURRENT_INSTALL_DIR} -p 7000
+            ./test_binary_swap.sh -b ${BASELINE_INSTALL_DIR} -c ${CURRENT_INSTALL_DIR} -p ${PGPORT}
           " 2>&1 | tee -a "${LOGS_DIR}/details/test_binary_swap.log" || TEST_RESULT=$?
           
           if [[ $TEST_RESULT -ne 0 ]]; then