Bump Redis to version 5

[HuongNV13]

MDL-66151 required Redis 5.0.0. We need to bump Redis from 3 to 5

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.84%. Comparing base (8c451a0) to head (648ac88).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #130      +/-   ##
==========================================
+ Coverage   57.15%   63.84%   +6.69%     
==========================================
  Files          47       47              
  Lines        1643     1643              
==========================================
+ Hits          939     1049     +110     
+ Misses        704      594     -110     

Flag	Coverage Δ
behat_bisect_test	40.41% <ø> (ø)
behat_test	40.17% <ø> (?)
phpunit_bisect_test	34.87% <ø> (ø)
phpunit_test	34.93% <ø> (ø)
postjobs_test	33.57% <ø> (ø)
runner_test	16.25% <ø> (ø)

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[lameze]

LGTM