Compiler error when using absl::uint28 as content_type for RTrees

[totakura]

Compile fails with the error:

...
../boost/geometry/index/detail/rtree/rstar/choose_next_node.hpp:135:33: error: conversion from 'type' (aka 'double') to 'uint128' is ambiguous
  135 |         if ( min_content_diff < -std::numeric_limits<double>::epsilon() || std::numeric_limits<double>::epsilon() < min_content_diff )
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...