DOC: Enforce Numpy Docstring Validation for pandas.Int
- [ ] xref #58498

It fixes 

```
 -i "pandas.Int16Dtype SA01" \ 
 -i "pandas.Int32Dtype SA01" \ 
 -i "pandas.Int64Dtype SA01" \ 
 -i "pandas.Int8Dtype SA01" \ 
-i "pandas.UInt16Dtype SA01" \
-i "pandas.UInt32Dtype SA01" \
-i "pandas.UInt64Dtype SA01" \
-i "pandas.UInt8Dtype SA01" \
```
Thanks @tuhinsharma121 