Custom delimiter set in configureCsv not used when exporting to CSV

[matejjurancic]

Hi,

first of all thanks for this great package!

I am mainly using it for simple (and fast) exports from DB to CSV such as:

(new FastExcel(SomeModel::get()))->configureCsv(';', "'")->export('export.csv');

But after upgrading openspout/openspout to v4 the options set in configureCsv are no longer taken in consideration as the exported CSV is made with the default delimiter ,. Import on the other hand works as expected.