Move `TenantEto` to the `Volo.Abp.MultiTenancy.Abstractions` project

[gdlcf88]

Resolve https://github.com/abpframework/abp/issues/18105.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 51.64%. Comparing base (b63f5e8) to head (e0873c3). Report is 2024 commits behind head on dev.

:exclamation: Current head e0873c3 differs from pull request most recent head 93ea718. Consider uploading reports for the commit 93ea718 to get more accurate results

Files	Patch %	Lines
...cy.Abstractions/Volo/Abp/MultiTenancy/TenantEto.cs	0.00%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##              dev   #18107   +/-   ##
=======================================
  Coverage   51.64%   51.64%           
=======================================
  Files        3056     3056           
  Lines       95747    95747           
  Branches     7633     7633           
=======================================
+ Hits        49448    49453    +5     
+ Misses      44783    44778    -5     
  Partials     1516     1516           

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[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.