feat: Migration script for LDAP sync

[jannden]

Closes #88

[codecov]

Codecov Report

Attention: Patch coverage is 95.87021% with 14 lines in your changes missing coverage. Please review.

Project coverage is 93.26%. Comparing base (519ddba) to head (fa8ffcb).
Report is 2 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/user.rs	84.05%	11 Missing ⚠️
src/bin/migrate.rs	98.72%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #93      +/-   ##
==========================================
+ Coverage   92.01%   93.26%   +1.25%     
==========================================
  Files           8        9       +1     
  Lines        1277     1604     +327     
==========================================
+ Hits         1175     1496     +321     
- Misses        102      108       +6     

Files with missing lines	Coverage Δ
src/lib.rs	86.40% <100.00%> (ø)
src/zitadel.rs	96.63% <100.00%> (+4.08%)	⬆️
src/bin/migrate.rs	98.72% <98.72%> (ø)
src/user.rs	91.66% <84.05%> (-8.34%)	⬇️

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[skomski]

Added some questions that I encountered.

@tlater-famedly is on vacation.