CRAN warnings - H5ls.c long long unsigned int

[dansmith01]

I saw that CRAN had flagged hdf5r due to automated build errors:
https://cran.r-project.org/web/checks/check_results_hdf5r.html

And the main page is tagged with "[issues need fixing before 2025-01-18]".

Here's a copy/paste of the build output:

  Found the following significant warnings:
    H5ls.c:79:97: warning: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 4 has type ‘hsize_t’ {aka ‘long unsigned int’} [-Wformat=]
    H5ls.c:89:108: warning: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 4 has type ‘hsize_t’ {aka ‘long unsigned int’} [-Wformat=]
  See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/hdf5r.Rcheck/00install.out’ for details.
  * used C compiler: ‘gcc-14 (Debian 14.2.0-12) 14.2.0’

Wish I could help with a PR, but this is beyond me. Good luck and thanks for hdf5r!