Fixed cancel and deadline propogation for the session pool

[alex268]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 85.71429% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.15%. Comparing base (2e3df4c) to head (db52108).

Files with missing lines	Patch %	Lines
...src/main/java/tech/ydb/query/impl/SessionImpl.java	70.58%	4 Missing and 1 partial ⚠️
...src/main/java/tech/ydb/query/impl/SessionPool.java	81.25%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #543      +/-   ##
============================================
+ Coverage     62.11%   62.15%   +0.03%     
  Complexity     2370     2370              
============================================
  Files           331      331              
  Lines         13753    13765      +12     
  Branches       1380     1380              
============================================
+ Hits           8543     8555      +12     
  Misses         4564     4564              
  Partials        646      646              

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