Fix incompatible pointer types (32-bit) - and fix for PHP 8.5

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Raised as error with GCC 14 on Fedora 40

See https://kojipkgs.fedoraproject.org//work/tasks/9956/112369956/build.log

/builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagickdraw_methods.c: In function 'php_gmagick_check_font':
/builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagickdraw_methods.c:1415:39: error: passing argument 2 of 'MagickQueryFonts' from incompatible pointer type [-Wincompatible-pointer-types]
 1415 |         fonts = MagickQueryFonts("*", &num_fonts);
      |                                       ^~~~~~~~~~
      |                                       |
      |                                       size_t * {aka unsigned int *}
In file included from /usr/include/GraphicsMagick/wand/wand_api.h:41,
                 from /builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/php_gmagick.h:42,
                 from /builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagickdraw_methods.c:20:
/usr/include/GraphicsMagick/wand/magick_wand.h:64:35: note: expected 'long unsigned int *' but argument is of type 'size_t *' {aka 'unsigned int *'}
   64 |   **MagickQueryFonts(const char *,unsigned long *),
      |                                   ^~~~~~~~~~~~~~~
make: *** [Makefile:219: gmagickdraw_methods.lo] Error 1
make: *** Waiting for unfinished jobs....
/builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagick_methods.c: In function 'zim_Gmagick_getimagechannelextrema':
/builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagick_methods.c:4988:82: error: passing argument 3 of 'MagickGetImageChannelExtrema' from incompatible pointer type [-Wincompatible-pointer-types]
 4988 |         status = MagickGetImageChannelExtrema(intern->magick_wand, channel_type, &minima, &maxima);
      |                                                                                  ^~~~~~~
      |                                                                                  |
      |                                                                                  size_t * {aka unsigned int *}
In file included from /usr/include/GraphicsMagick/wand/wand_api.h:41,
                 from /builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/php_gmagick.h:42,
                 from /builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagick_methods.c:20:
/usr/include/GraphicsMagick/wand/magick_wand.h:201:63: note: expected 'long unsigned int *' but argument is of type 'size_t *' {aka 'unsigned int *'}
  201 |   MagickGetImageChannelExtrema(MagickWand *,const ChannelType,unsigned long *,
      |                                                               ^~~~~~~~~~~~~~~
/builddir/build/BUILD/php-pecl-gmagick-2.0.6~RC1/gmagick-2.0.6RC1/gmagick_methods.c:4988:91: error: passing argument 4 of 'MagickGetImageChannelExtrema' from incompatible pointer type [-Wincompatible-pointer-types]
 4988 |         status = MagickGetImageChannelExtrema(intern->magick_wand, channel_type, &minima, &maxima);
      |                                                                                           ^~~~~~~
      |                                                                                           |
      |                                                                                           size_t * {aka unsigned int *}
/usr/include/GraphicsMagick/wand/magick_wand.h:202:5: note: expected 'long unsigned int *' but argument is of type 'size_t *' {aka 'unsigned int *'}
  202 |     unsigned long *),
      |     ^~~~~~~~~~~~~~~

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Build with patch applied
https://koji.fedoraproject.org/koji/taskinfo?taskID=112599623

[cmb69]

Also an issue on LLP64 (e.g. Windows x64) where long is 32 bit, but size_t is 64bit. Likely harmless on little-endian architectures, though, but serious for big-endian if the types have different sizes.

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1 more commit for 8.5