elfutils: Ignore wrong use-after-free error

elfutils: Ignore wrong use-after-free error

GCC 12.2.0 shows this false positive error message:
````
In function 'bigger_buffer',
    inlined from '__libdw_gunzip' at gzip.c:374:12:
gzip.c:96:9: error: pointer may be used after 'realloc' [-Werror=use-after-free]
   96 |     b = realloc (state->buffer, more -= 1024);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gzip.c:94:13: note: call to 'realloc' here
   94 |   char *b = realloc (state->buffer, more);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
````

GCC bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104069

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>