fix(warehouse): read unlock in historic identities

[Jayachand]

Description

applying 1.2.2 hotfixes to main branch

Notion Ticket

https://www.notion.so/rudderstacks/Release-process-094ecf877f3d47e9ad94ab28622da225

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Base: 44.01% // Head: 43.95% // Decreases project coverage by -0.05% ⚠️

Coverage data is based on head (cd22309) compared to base (a194b0c).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2592      +/-   ##
==========================================
- Coverage   44.01%   43.95%   -0.06%     
==========================================
  Files         187      187              
  Lines       39086    39086              
==========================================
- Hits        17202    17181      -21     
- Misses      20805    20825      +20     
- Partials     1079     1080       +1     

Impacted Files	Coverage Δ
warehouse/identities.go	1.05% <0.00%> (ø)
utils/httputil/server.go	80.76% <0.00%> (-11.54%)	⬇️
services/rsources/handler.go	69.72% <0.00%> (-1.39%)	⬇️
processor/processor.go	71.23% <0.00%> (-0.83%)	⬇️
services/stats/stats.go	90.30% <0.00%> (+1.81%)	⬆️

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