Set DbSchema as AbpCommonDbProperties.DbSchema.

[maliming]

Resolves #17126

[codecov]

Codecov Report

Merging #17127 (78f67ff) into rel-7.3 (2c7879d) will increase coverage by 0.03%.
The diff coverage is 23.07%.

@@             Coverage Diff             @@
##           rel-7.3   #17127      +/-   ##
===========================================
+ Coverage    53.34%   53.38%   +0.03%     
===========================================
  Files         2977     2977              
  Lines        92270    92280      +10     
===========================================
+ Hits         49220    49260      +40     
+ Misses       43050    43020      -30     

Impacted Files	Coverage Δ
...viceProxying/CSharp/CSharpServiceProxyGenerator.cs	0.00% <0.00%> (ø)
...CmsKit.Domain/Volo/CmsKit/AbpCmsKitDbProperties.cs	100.00% <100.00%> (ø)
...bp/IdentityServer/AbpIdentityServerDbProperties.cs	100.00% <100.00%> (ø)
...n/Volo/Abp/OpenIddict/AbpOpenIddictDbProperties.cs	100.00% <100.00%> (ø)

... and 6 files with indirect coverage changes

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