1.13.0 - Misc cleanups

What's Changed

Misc cleanups by @gwynne in #123

• Update Swift minimum version to 5.6 to match Vapor
• CI updates

Reviewers

Thanks to the reviewers for their help:

• @MahdiBM

This patch was released by @gwynne

Full Changelog: https://github.com//compare/1.12.1...1.13.0

Add missing platform specifiers

This patch was authored and released by @gwynne.

Match Vapor's support

Add async job hooks

This patch was authored by @madsodgaard and released by @0xTim.

• Bump Swift version to 5.5.2
• Backport concurrency to older platforms
• Add AsyncJobEventDelegate for async hooks
• Replace Lock with NIOLock

Fix typos in QueueWorker log messages

This patch was authored by @heldersrvio and released by @jdmcd.

Fixes a few typo'd log messages.

Allow public access to set ScheduleBuilder Calendar

This patch was authored by @dylanshine and released by @0xTim.

Adds a new using(_:) API to the ScheduleBuilder to allow the calendar to be set when creating jobs on a schedule

Add ability to use custom `Calendar` in `ScheduleBuilder`

This patch was authored by @dylanshine and released by @jdmcd.

This PR introduces the ability to pass a custom Calendar to the ScheduleBuilder.

I ran into an edge case where I have queues deployed across multiple regions and needed to schedule jobs based on specific time zones.

I also cleaned up some unused computed properties in the ScheduleBuilderTests suite.

Update Supported Swift Versions

This patch was authored and released by @0xTim.

This removes support for Swift 5.2 and Swift 5.3, making Swift 5.4 the earliest supported version as announced

Make AsyncScheduledJob public so clients can conform to it

This patch was authored by @iKenndac and released by @0xTim.

This PR allows client apps to conform to the previously-added AsyncScheduledJob protocol by making it, and the associated adapter function from ScheduledJob, public.

Added AsyncScheduledJob and cleaned up AsyncJob.

This patch was authored by @Andrewangeta and released by @jdmcd.

Allows AsyncJobs to be added to the app via app.queues.add(...) method.

Async Await Support via AsyncJob

This patch was authored by @jdmcd and released by @0xTim.

Adds AsyncJob which allows you to specify a job that has async body implementations:

struct MyJobPayload: Content {
    let name: String
}

struct MyAsyncJob: AsyncJob {
    func dequeue(context: QueueContext, payload: MyJobPayload) async throws {
        print(payload.name)
    }

    func error(context: QueueContext, error: Error, payload: MyJobPayload) async throws {
        print(error)
    }
}

// In configure.swift 
app.queues.add(MyAsyncJob())