Add virtual keyword to Repositories&AppServices&Controllers.

[maliming]

No description provided.

[codecov]

Codecov Report

Merging #17117 (2c7879d) into rel-7.3 (093e1f8) will decrease coverage by 0.06%.
The diff coverage is 8.33%.

@@             Coverage Diff             @@
##           rel-7.3   #17117      +/-   ##
===========================================
- Coverage    53.39%   53.34%   -0.06%     
===========================================
  Files         2977     2977              
  Lines        92256    92270      +14     
===========================================
- Hits         49261    49220      -41     
- Misses       42995    43050      +55     

Impacted Files	Coverage Δ
...I/Packages/Bootstrap/BootstrapScriptContributor.cs	0.00% <ø> (ø)
...igurations/AbpApplicationLocalizationAppService.cs	0.00% <ø> (ø)
...Abp.Cli.Core/Volo/Abp/Cli/Commands/SuiteCommand.cs	0.00% <0.00%> (ø)
...Domain/Repositories/MemoryDb/MemoryDbRepository.cs	90.33% <ø> (ø)
...p/Domain/Repositories/MongoDB/MongoDbRepository.cs	77.01% <ø> (ø)
...Volo/CmsKit/Admin/Blogs/BlogPostAdminAppService.cs	82.40% <ø> (ø)
...n/GlobalResources/GlobalResourceAdminAppService.cs	0.00% <ø> (ø)
...ation/Volo/CmsKit/Admin/Tags/TagAdminAppService.cs	37.28% <ø> (ø)
...e/Volo/CmsKit/Blogs/EfCoreBlogFeatureRepository.cs	100.00% <ø> (ø)
...Core/Volo/CmsKit/Blogs/EfCoreBlogPostRepository.cs	78.65% <ø> (ø)
... and 33 more

... and 5 files with indirect coverage changes

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