games-action/multimc: Fix build failure with gcc-11.1.0

Package-Manager: Portage-3.0.18, Repoman-3.0.3
Signed-off-by: YOSHIOKA Takuma <lo48576@hard-wi.red>

games-action/multimc/files/multimc-0.6.12-gcc11.patch

@@ -0,0 +1,11 @@
+diff -Naur MultiMC5-0.6.12.orig/libraries/systeminfo/src/sys_unix.cpp MultiMC5-0.6.12/libraries/systeminfo/src/sys_unix.cpp
+--- MultiMC5-0.6.12.orig/libraries/systeminfo/src/sys_unix.cpp	2021-03-22 04:45:06.000000000 +0900
++++ MultiMC5-0.6.12/libraries/systeminfo/src/sys_unix.cpp	2021-04-29 06:41:55.269952475 +0900
+@@ -4,6 +4,7 @@
+ 
+ #include <sys/utsname.h>
+ #include <fstream>
++#include <limits>
+ 
+ Sys::KernelInfo Sys::getKernelInfo()
+ {

games-action/multimc/multimc-0.6.12.ebuild

@@ -45,6 +45,7 @@ RDEPEND="${COMMON_DEPEND}
 "
 
 S="${WORKDIR}/${MY_P}"
+PATCHES=( "${FILESDIR}"/multimc-0.6.12-gcc11.patch )
 
 src_unpack() {
 	default