Changes

fix(pingcap/tikv): fix pod yaml path (#3015)

### **User description**
fix pod yaml path


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### **PR Type**
Bug fix


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### **Description**
- Fixed the path to the pod YAML file in the `pull_unit_test.groovy`
script to ensure the correct file is referenced.



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### **Changes walkthrough** 📝
<table><thead><tr><th></th><th align="left">Relevant
files</th></tr></thead><tbody><tr><td><strong>Bug fix
</strong></td><td><table>
<tr>
  <td>
    <details>
<summary><strong>pull_unit_test.groovy</strong><dd><code>Fix pod YAML
file path in Groovy script.</code>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; &nbsp; </dd></summary>
<hr>
      
pipelines/tikv/tikv/release-8.2/pull_unit_test.groovy

- Corrected the path to the pod YAML file.



</details>
    

  </td>
<td><a
href="https://github.com/PingCAP-QE/ci/pull/3015/files#diff-36661dd3b075dc1a3e89481456b65422b5417bc8b0db91a0227829249d6f0eda">+1/-1</a>&nbsp;
&nbsp; &nbsp; </td>

</tr>                    
</table></td></tr></tr></tbody></table>

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