databases/clickhouse: update to 20.5.4.40-stable
- switch to GH_TUPLES (as the author advises: https://github.com/ClickHouse/ClickHouse/issues/10243)
- TESTS options: add lang/expect as run deps due to some tests use an expect
- update official site URL
- pass maintainership to submitter
Changelog:
https://github.com/ClickHouse/ClickHouse/blob/v20.5.4.40-stable/CHANGELOG.md
(it doesn't includes changes for 20.5.4.40 in particular, but still helpful for 19->20 changes)
PR: 248467
Submitted by: olevole@olevole.ru
Reviewed by: fernape (general port review)
Approved by: proler@gmail.com (previous maintainer)