[cherry-pick] refactor: migrate the redis command keys to scan

[chlins]

Refine the cache interface, migrate the Keys to Scan, change the redis underlying keys command to scan.

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
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• Made sure tests are passing and test coverage is added if needed.
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[codecov]

Codecov Report

Merging #19148 (d3f625a) into release-2.7.0 (7c6e292) will increase coverage by 0.01%.
Report is 1 commits behind head on release-2.7.0.
The diff coverage is 75.00%.

@@                Coverage Diff                @@
##           release-2.7.0   #19148      +/-   ##
=================================================
+ Coverage          66.39%   66.41%   +0.01%     
=================================================
  Files               1012     1012              
  Lines             108654   108674      +20     
  Branches            2678     2678              
=================================================
+ Hits               72145    72175      +30     
+ Misses             32546    32534      -12     
- Partials            3963     3965       +2     

Flag	Coverage Δ
unittests	66.41% <75.00%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
src/lib/cache/cache.go	92.68% <ø> (-7.32%)	⬇️
src/pkg/cached/project_metadata/redis/manager.go	46.37% <0.00%> (ø)
src/pkg/cached/base_manager.go	40.00% <36.36%> (-2.86%)	⬇️
src/lib/cache/redis/redis.go	69.91% <77.77%> (+0.54%)	⬆️
src/lib/cache/memory/memory.go	89.65% <100.00%> (+6.09%)	⬆️

... and 4 files with indirect coverage changes

[wy65701436]

lgtm