* Only set HIREDIS_AVAILABLE if Hiredis is not 0.x

* Remove compatibility code for old Hiredis versions

* Move packaging dependency to dev only

* add click to dependencies

* typo

Co-authored-by: Chayim I. Kirshen <c@kirshen.com>
Co-authored-by: dvora-h <dvora.heller@redis.com>

* add redis5 and redis4 dockers

* redis versions testenv

* path changes

* fix linters

* fix tests

* fixing linter

* Increased pubsub's wait_for_messages timeout to prevent flaky tests (#1893)

* Fixing TypeError in GraphCommands.explain (#1901)

* Fixing AttributeError in UnixDomainSocketConnection (#1903)

* Fixing AttributeError on some connection errors (#1905)

* cluster script fixes to support future cluster versions and redis unstable (#1900)

* Fixing LMOVE, BLMOVE returning an incorrect response (#1906)

* Raising ConnectionError on invalid ocsp certificates - with status information (#1907)

* 4.1.2 (#1904)

* adding cluster env timeout time (#1908)

* Update changes file with changes since 4.0.0-beta2 (#1915)

* Fixing volume for unstable_cluster docker (#1914)

* Change json.clear test multi to be up to date with redisjson (#1922)

* fix json clear test

* fix json clear test

* Add support for BZMPOP (#1851)

* add bzmpop

* add comment

* fix pr comment

* fix linters

* fix pr comments

* add client no-evict (#1856)

* Add support for ZINTERCARD (#1857)

* add zintercard

* fix pr comment

* linters

* Add support for EVAL_RO (#1862)

* add sort_ro

* mark test as onlynon cluster

* delete mark test as onlynoncluster

* add eval_ro

* fix linters

* delete sort_ro

* fix pr comment

* add type hints

* add type hints

* linters

* Add support for EVALSHA_RO (#1863)

* add evalsha-ro

* fix pr comment

* add type hints

* add type hints

* Fix naming conventions (#1872)

* fix naming convention

* fix worng changes

* change ports to resolve conflict with unstable_cluster

Co-authored-by: Chayim I. Kirshen <c@kirshen.com>
Co-authored-by: Chayim <chayim@users.noreply.github.com>
Co-authored-by: Bar Shaul <88437685+barshaul@users.noreply.github.com>
Co-authored-by: Varun Chopra <v@chopraaa.com>

Adding support for SSL private keys with a password.  This PR also adds support for future SSL tests.

@akx Thank you so much for this! Thanks again for introducing me to a new tool that I'm sliding into my workflow as well.