emulators/wine-proton: Fix build with GCC 14

Disable warnings about incompatible integer to pointer and pointer to
integer conversions, which are treated as errors.
This is a lighter version of adding the -fpermissive flag, which has
been used to fix other ports failing build with GCC 14.

PR:		284488
Approved by:	maintainer (Alex S <iwtcex@gmail.com>)

emulators/wine-proton/Makefile

@@ -96,7 +96,7 @@ CONFIGURE_ARGS=	--verbose \
 
 CONFIGURE_ENV=	CPPBIN="false" CPPFLAGS="" FLEX="${LOCALBASE}/bin/flex" JXRLIB_CFLAGS="-I${LOCALBASE}/include/jxrlib"
 
-CFLAGS+=	-D__NR_futex="-1" -Werror=implicit-function-declaration
+CFLAGS+=	-D__NR_futex="-1" -Werror=implicit-function-declaration -Wno-int-conversion
 CFLAGS_i386+=	-mpreferred-stack-boundary=4 -mstackrealign
 PIE_UNSAFE=	yes