fix: Use rfc3339 to decode date from text

[pierre-wehbe]

Does your PR solve an issue?

https://github.com/launchbadge/sqlx/issues/703#issuecomment-2272616894

Fix inspired by https://github.com/launchbadge/sqlx/pull/1618/files

[pierre-wehbe]

@abonander @CommanderStorm Any chance this can be reviewed soon?

[CommanderStorm]

@pierre-wehbe You opened the PR 11h ago and and are already pinging? I think you might be having this issue in prod => You know you can override the cargo dependency resolution to point to git

[pierre-wehbe]

@CommanderStorm Already overwrote the cargo deps. Wasn't sure how to get the PR visibility since no Reviewers were assigned.

[abonander]

It's generally just me, and I get to it when I get to it.