Convert lsqb cpp tests to end to end tests

[rfdavid]

This PR converts LSQB tests to end-to-end tests by adding support to define buffer pool size inside the test file header. Example:

lsqb.test:

-GROUP LSQBTest
-DATASET sf-0.1
-BUFFER_POOL_SIZE 1073741824

--

-CASE LSQBTest
...

For number 1073741824 was calculated based on the actual code:

constants.h:
static constexpr uint64_t DEFAULT_BUFFER_POOL_SIZE_FOR_TESTING = 1ull << 26; // 67108864

lsqb.cpp:
systemConfig->bufferPoolSize = kuzu::common::BufferPoolConstants::DEFAULT_BUFFER_POOL_SIZE_FOR_TESTING * 16;

Hence 67108864*16 = 1073741824

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (fbee1f6) 91.86% compared to head (d9b8d3b) 91.87%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1580   +/-   ##
=======================================
  Coverage   91.86%   91.87%           
=======================================
  Files         701      701           
  Lines       25325    25325           
=======================================
+ Hits        23266    23267    +1     
+ Misses       2059     2058    -1     

see 1 file with indirect coverage changes

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