chore: bump version to 0.8.0

fix: deprecation in `postgres::types::chrono`

Merge pull request #2895 from launchbadge/release/0.7.3

0.7.3 release

prepare 0.7.1 release (#2621)

0.7.0 release (#2575)

* WIP preparing 0.7.0 release

* fix: re-enable examples

* fix doctests in `sqlx-core`

* cherry-pick CHANGELOG entry for 0.6.3

* add actions workflow for examples

* fix(cli): close connection after running migrations

* fix examples

* fix(sqlite): fix parsing of URLs via `Any`

* fix(example): don't let Postgres `listen` example run forever

* fix Postgres `transaction` example

0.7.0-alpha.3 release

0.6.3 release (hotfix)

0.6.2 release

0.6.1 release

0.6.0 release