Fix division bug in max_inscribed_ball function causing "test_max_ball" failure

[Shorya777]

Describe the bug
test_max_ball testcase fails due to a numerical instability inside max_inscribed_ball.
The failure is caused by a division operation where the denominator becomes extremely small during execution, leading to failure in convergence of algorithm and ultimately a failing test.

To Reproduce
Steps to reproduce the behavior:

cd test
mkdir -p build && cd build
cmake ..
make
./test_internal_points -tc=test_max_ball

Expected behavior
test_max_ball should pass and return a valid maximum inscribed ball with a correct radius value

Screenshots

Additional context
The issue originates from the following kind of division in max_inscribed_ball.hpp:

 *vec_iter1 = ((*vec_iter4) / (*vec_iter2) - (*vec_iter5)) / (*vec_iter3); 

where *vec_iter2 and *vec_iter3 can become extremely small during iterations, leading to numerical instability.