Add ClaimNameExist to IdentityErrorCodes

[realLiangshiwei]

Description

Related: https://github.com/volosoft/volo/issues/16169

Checklist

• I fully tested it as developer / designer and created unit / integration tests
• I documented it (or no need to document or I will create a separate documentation issue)

How to test it?

[codecov]

Codecov Report

Attention: 39 lines in your changes are missing coverage. Please review.

Comparison is base (3a23269) 51.60% compared to head (c4a0b46) 51.59%.
Report is 13 commits behind head on rel-8.0.

Files	Patch %	Lines
...olo/Abp/Cli/Commands/ProjectCreationCommandBase.cs	0.00%	20 Missing ⚠️
...ectModification/VoloNugetPackagesVersionUpdater.cs	0.00%	16 Missing ⚠️
...bp.Cli.Core/Volo/Abp/Cli/Commands/UpdateCommand.cs	0.00%	2 Missing ⚠️
...olo/Abp/Identity/IdentityClaimTypeManager_Tests.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           rel-8.0   #18669      +/-   ##
===========================================
- Coverage    51.60%   51.59%   -0.02%     
===========================================
  Files         3074     3074              
  Lines        97091    97110      +19     
  Branches      7729     7732       +3     
===========================================
  Hits         50106    50106              
- Misses       45444    45463      +19     
  Partials      1541     1541              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[gizemmutukurt]

Please add @oykuermann and me for functional testing.