ko: cr2 Concurrency translations (#1659)

#262 #1463
*Stats*
Before: 1297 translated messages, 383 fuzzy translations, 1780
untranslated messages.
After: 1493 translated messages, 454 fuzzy translations, 1513
untranslated messages.

**Note**
You can ignore _fuzzy_ translations from sections other than
Concurrency.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: Andriy Redko <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Martin Geisler <[email protected]>