This closes #1937,fix getPivotTable use wrong sheetName (#1937)

[ShowerBandV]

PR Details

Fix the data source sheet in the getpivot Table method

Description

Related Issue

https://github.com/qax-os/excelize/issues/1937

Motivation and Context

How Has This Been Tested

Types of changes

• [ ] Docs change / refactoring / dependency upgrade
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.30%. Comparing base (b18b480) to head (074415f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1941 +/- ## ======================================= Coverage 99.30% 99.30% ======================================= Files 32 32 Lines 24965 24965 ======================================= Hits 24791 24791 Misses 93 93 Partials 81 81 ``` | [Flag](https://app.codecov.io/gh/qax-os/excelize/pull/1941/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qax-os) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/qax-os/excelize/pull/1941/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qax-os) | `99.30% <100.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qax-os#carryforward-flags-in-the-pull-request-comment) to find out more.

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