Fix test case for path expressions using the wrong aerospike constant

[DomPeliniAerospike]

Used incorrect value for flags parameter in select by path.
No failure was detected since both EXP_PATH_SELECT_VALUE and EXP_LOOPVAR_VALUE both equal 1.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.30%. Comparing base (b658400) to head (8faecaa).
⚠️ Report is 3 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #924   +/-   ##
=======================================
  Coverage   83.30%   83.30%           
=======================================
  Files          99       99           
  Lines       14402    14402           
=======================================
  Hits        11997    11997           
  Misses       2405     2405           

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