v1.0.0

Initial stable release of package workerpool.

What's Changed

• Document Submit and Drain returning ErrClosed by @tklauser in #1
• Close tasks channel after WaitGroup.Wait by @tklauser in #3
• test: fix flaky drain test by @rolinh in #4
• Waiit for the "run" routine to return on Close by @rolinh in #5
• workerpool: add Cap() to retrieve the WorkerPool capacity by @kaworu in #7
• make Close() return an error when called more than once by @kaworu in #6
• Test Drain on already drained worker pool by @tklauser in #8
• tests cleanup by @kaworu in #9
• Test that New(n) with n ≤ 0 will panic by @tklauser in #10
• workerpool: refactor results to avoid unnecessary copy by @kaworu in #11
• add context to the task function signature by @rolinh in #12
• ci: update Go to 1.15.8 by @kaworu in #13
• cosmetic testing improvements by @kaworu in #14
• ci: update Go to 1.16 by @rolinh in #15
• .github: use matrix strategy and test with Go 1.15 as well by @tklauser in #16
• doc: remove experimental warning in the readme by @rolinh in #17
• doc: add Go doc reference and CI badges to the readme by @rolinh in #18

Full Changelog: https://github.com/cilium/workerpool/commits/v1.0.0