[REF][PHP8.1] Apply patches from upstream to ensure league/csv can work on php8.1

[seamuslee001]

Overview

Note that this incldues the PR #24045

This applies the following patches (one minorly modified locally) to get league/csv to work with php8.1

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Before

League/csv installed version won't work with php8.1

After

League/csv version does work with php8.1

If we just upgraded league/csv to the released version that contained these patches we would need to bump our minimum install version to php7.3 which might be a reasonable thing to do anyway but this at least allows us to get through without needing to do that

ping @demeritcowboy @totten @eileenmcnaughton @colemanw

[civibot]

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[eileenmcnaughton]

OK -our usage of csv is not complicated and has test cover and there is also test cover in the wmf codebase so I feel good about our test cover. In WMF codebase we hit incompatibilitiies last upgrade - which showed that the tests work (the fix was a composer update to wmf code).

[demeritcowboy]

Patches don't seem to work in drupal 9: https://lab.civicrm.org/dev/core/-/issues/3766