fix: retry delay not persisting between calls

Summary

Retry delays are not actually working as specified in the docs. Currently, retry delays are not persisted between retries, resulting in exponential backoff not actually increasing the delay amount as time goes on. The linear backoff also does not currently work.

I've added a unit test for this, as well as the change for the behavior to comply with what's actually stated in the docs.

Set of changes

Made retry delays persist in the context, allowing backoffs to work
Added unit test for retry delay
Modified an existing unit test that was failing (I believe it might have been incorrect, but I'm not entirely sure, please verify! It seems like the retry value is meant to reset after a retry that was successful [so, a successful operation], but the unit test was checking the retry values after a failed/errored operation instead. However, the test was passing because the retry delays were never being carried across operations anyway.)

urql-graphql / urql

fix: retry delay not persisting between calls #3478

Summary

Set of changes

🦋 Changeset detected