Mark Cache with ini tag

[jolheiser]

Fixes #12587

(Note that this doesn't usually show up in admin UI with memory cache, I fudged the template to show it for an example)

[codecov-commenter]

Codecov Report

Merging #12605 into master will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #12605      +/-   ##
==========================================
- Coverage   43.41%   43.40%   -0.01%     
==========================================
  Files         645      645              
  Lines       71288    71288              
==========================================
- Hits        30947    30942       -5     
- Misses      35327    35333       +6     
+ Partials     5014     5013       -1     

Impacted Files	Coverage Δ
modules/setting/cache.go	52.38% <ø> (ø)
models/unit.go	46.57% <0.00%> (-2.74%)	⬇️
modules/queue/unique_queue_disk_channel.go	53.84% <0.00%> (-1.54%)	⬇️
routers/repo/view.go	37.33% <0.00%> (-0.65%)	⬇️
modules/process/manager.go	75.00% <0.00%> (+2.50%)	⬆️

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[lafriks]

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