TST : unhandle exceptions raised because of Non closed temporary file streams

[pubpub-zz]

Environment

side effect of #2379

$ python -m platform
Windows-10-10.0.22621-SP0
python 3.10

$ python -c "import pypdf;print(pypdf._debug_versions)"
pypdf==3.17.4, crypt_provider=('cryptography', '41.0.1'), PIL=10.1.0

Code + PDF

pytest -k test_writer_operations_by_traditional_usage

Traceback

This is the complete traceback I see:

E               pytest.PytestUnraisableExceptionWarning: Exception ignored in: <_io.FileIO [closed]>
E
E               Traceback (most recent call last):
E                 File "E:\PyPDF4.git\PyPDF2\tests\test_writer.py", line 227, in test_writer_operations_by_traditional_usage
E                   write_data_here = convert(NamedTemporaryFile(suffix=".pdf", delete=needs_cleanup).name)
E               ResourceWarning: unclosed file <_io.BufferedRandom name=15>

C:\Python310\lib\site-packages\_pytest\unraisableexception.py:78: PytestUnraisableExceptionWarning```


## Analysis

the temporary file created is not closed : it should be 

[stefan6419846]

Thanks for the report. Could you please test with

    if callable(convert):
        with NamedTemporaryFile(suffix=".pdf", delete=False) as temporary:
            write_data_here = convert(temporary.name)
    else:
        write_data_here = convert

instead? If this works, I will submit a corresponding PR to rework/fix this.