[ST][MS][CI] ST probabilistic failure in gate<test_sparse_segment_mean_op.py::test_net[float64-int64-5]>

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Bug Report	Use this template for reporting a bug	kind/bug

Describe the current behavior / 问题描述 (Mandatory / 必填)

The test case failed and gate build failed

Environment / 环境信息 (Mandatory / 必填)

Hardware Environment(Ascend/GPU/CPU) / 硬件环境:

Please delete the backend not involved / 请删除不涉及的后端:
/device ascend/GPU/CPU/kirin/等其他芯片

Software Environment / 软件环境 (Mandatory / 必填):
-- MindSpore version (e.g., 1.7.0.Bxxx) :
-- Python version (e.g., Python 3.7.5) :
-- OS platform and distribution (e.g., Linux Ubuntu 16.04):
-- GCC/Compiler version (if compiled from source):
Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:
/mode pynative
/mode graph

Related testcase / 关联用例 (Mandatory / 必填)

The test case failed and gate build failed

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

code compile
install mindspore*.whl
run testcase

Describe the expected behavior / 预期结果 (Mandatory / 必填)

The test case run success

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

URL: https://build.mindspore.cn/blue/organizations/jenkins/MindSpore_Gitee_Gate/detail/MindSpore_Gitee_Gate/167605/pipeline
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Special notes for this issue/备注 (Optional / 选填)

test_sparse_segment_mean_op.py::test_net[float64-int64-5]用例概率失败，导致门禁构建失败

Please assign maintainer to check this issue.
请为此issue分配处理人。
@wmzheng2020

Please add labels (comp or sig), also you can visit https://gitee.com/mindspore/community/blob/master/sigs/dx/docs/labels.md to find more.
为了让代码尽快被审核，请您为Pull Request打上 组件(comp)或兴趣组(sig) 标签，打上标签的PR可直接推送给责任人进行审核。
更多的标签可以查看https://gitee.com/mindspore/community/blob/master/sigs/dx/docs/labels.md
以组件相关代码提交为例，如果你提交的是data组件代码，你可以这样评论：
//comp/data
当然你也可以邀请data SIG组来审核代码，可以这样写：
//sig/data
另外你还可以给这个PR标记类型，例如是bugfix或者是特性需求：
//kind/bug or //kind/feature
恭喜你，你已经学会了使用命令来打标签，接下来就在下面的评论里打上标签吧！

https://build.mindspore.cn/blue/organizations/jenkins/MindSpore_Gitee_Gate/detail/MindSpore_Gitee_Gate/167612/pipeline

https://build.mindspore.cn/blue/organizations/jenkins/MindSpore_Gitee_Gate/detail/MindSpore_Gitee_Gate/167646/pipeline

https://build.mindspore.cn/blue/organizations/jenkins/MindSpore_Gitee_Gate/detail/MindSpore_Gitee_Gate/167708/pipeline

#Appearance & Root Cause
样例存在精度误差
#Fix Solution
已提交修复PR，!35689:Add random seed for SparseSegmentMean test case.

回归时间：2022.06.11
回归版本：master commit_id =  645d9ba6fb089a4bb7ee26bd68a7813c8bf6e6ec
回归步骤：１、代码下载；2、代码编译；3、whl包安装；4、运行用例；
回归结果：用例通过
回归结论：回归通过

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GVP MindSpore / mindspore

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