Fix and test script timeout

[alonre24]

Following @AvitalFineRedis bug:
fix script execute parsing for cases that TIMEOUT arg is given and test it

[codecov]

Codecov Report

Merging #840 (7367b8e) into master (de0f302) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #840      +/-   ##
==========================================
+ Coverage   79.97%   80.02%   +0.04%     
==========================================
  Files          53       53              
  Lines        8009     8004       -5     
==========================================
  Hits         6405     6405              
+ Misses       1604     1599       -5     

Impacted Files	Coverage Δ
src/execution/parsing/script_commands_parser.c	78.68% <100.00%> (+1.56%)	⬆️
src/redis_ai_objects/script.c	93.02% <0.00%> (+1.16%)	⬆️

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