[Chapel Merge] Reduce the recursive cobegin test's size

Branch: refs/heads/master
Revision: 7e51a7b
Author: e-kayrakli
Log Message:

Merge pull request #16386 from e-kayrakli/fix-recur-cobegin-test

Reduce the recursive cobegin test’s size

This test got stack overflows with AddressSanitizer testing. We decided to drop
the depth of recursion and use the default stack size.

[Trivial, discussed offline, not reviewed]

Modified Files:
R test/parallel/cobegin/deitz/test_big_recursive_cobegin.execenv
M test/parallel/cobegin/deitz/test_big_recursive_cobegin.chpl
M test/parallel/cobegin/deitz/test_big_recursive_cobegin.good

Compare: https://github.com/chapel-lang/chapel/compare/40b2abfa88bb...7e51a7bee249