rename experimental method

[rekby]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Other information

[github-actions]

github.com/ydb-platform/ydb-go-sdk/v3/topic/topicreader

incompatible changes

(*Reader).PopBatchTx: removed

compatible changes

(*Reader).PopMessagesBatchTx: added

summary

Base version: v3.80.5 (master)
Cannot suggest a release version.
Incompatible changes were detected.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.86%. Comparing base (054669f) to head (8e67aec).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1466      +/-   ##
==========================================
- Coverage   67.99%   67.86%   -0.13%     
==========================================
  Files         350      350              
  Lines       36289    36289              
==========================================
- Hits        24674    24629      -45     
- Misses      10541    10573      +32     
- Partials     1074     1087      +13     

Flag	Coverage Δ
experiment	72.05% <100.00%> (-0.22%)	⬇️
go-1.21.x	68.10% <0.00%> (-0.25%)	⬇️
go-1.22.x	65.76% <0.00%> (-0.20%)	⬇️
go-1.23.x	67.80% <100.00%> (-0.19%)	⬇️
integration	53.86% <0.00%> (-0.19%)	⬇️
macOS	40.98% <0.00%> (-0.01%)	⬇️
ubuntu	72.27% <100.00%> (-0.15%)	⬇️
unit	41.42% <0.00%> (-0.01%)	⬇️
windows	41.41% <0.00%> (-0.02%)	⬇️
ydb-23.3	47.68% <0.00%> (-0.22%)	⬇️
ydb-24.1	53.66% <0.00%> (-0.32%)	⬇️
ydb-nightly	72.05% <100.00%> (-0.22%)	⬇️

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