update deps

deps/PNG/0002-clang19-macos.patch

@@ -0,0 +1,29 @@
+--- a/pngpriv.h	2025-04-20 19:36:04.000000000 
++++ b/pngpriv.h	2025-04-20 19:35:55.000000000 
+@@ -511,24 +511,14 @@
+     *  DBL_DIG  Maximum number of decimal digits (can be set to any constant)
+     *  DBL_MIN  Smallest normalized fp number (can be set to an arbitrary value)
+     *  DBL_MAX  Maximum floating point number (can be set to an arbitrary value)
+     */
+ #  include <float.h>
+ 
+-#  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
+-    defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
+-   /* We need to check that <math.h> hasn't already been included earlier
+-    * as it seems it doesn't agree with <fp.h>, yet we should really use
+-    * <fp.h> if possible.
+-    */
+-#    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
+-#      include <fp.h>
+-#    endif
+-#  else
+-#    include <math.h>
+-#  endif
++#  include <math.h>
++
+ #  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
+    /* Amiga SAS/C: We must include builtin FPU functions when compiling using
+     * MATH=68881
+     */
+ #    include <m68881.h>
+ #  endif