undo framework bump

Charts.xcodeproj/project.pbxproj

@@ -1034,7 +1034,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Source/Supporting Files/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/../Frameworks",
@@ -1224,7 +1224,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				INFOPLIST_FILE = "Source/Supporting Files/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/../Frameworks",