fix(测试跟踪): 修复测试计划执行选择环境组后没生效的缺陷

--bug=1018939 --user=王孝刚 【测试跟踪】测试计划执行，选择环境组后没生效
https://www.tapd.cn/55049933/s/1278687

test-track/backend/src/main/java/io/metersphere/plan/service/TestPlanService.java

@@ -1518,7 +1518,7 @@ public class TestPlanService {
         if (StringUtils.equals(envType, "JSON") && !envMap.isEmpty()) {
             runModeConfig.setEnvMap(testplanRunRequest.getEnvMap());
             this.setPlanCaseEnv(testPlanId, runModeConfig);
-        } else if (StringUtils.equals(envType, "JSON") && StringUtils.isNotBlank(environmentGroupId)) {
+        } else if (StringUtils.equals(envType, "GROUP") && StringUtils.isNotBlank(environmentGroupId)) {
             runModeConfig.setEnvironmentGroupId(testplanRunRequest.getEnvironmentGroupId());
             this.setPlanCaseEnv(testPlanId, runModeConfig);
         }