osx: libgme Xcode16.1 compile fix

Author: Oleksiy-Yakovenko

osx/deadbeef.xcodeproj/project.pbxproj

@@ -21387,7 +21387,7 @@
 		2D2A135C19B647CF00AD1EB7 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++98";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_WARN_COMMA = NO;
@@ -21424,7 +21424,7 @@
 		2D2A135D19B647CF00AD1EB7 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++98";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_WARN_COMMA = NO;