Set minimum required version to macOS 12.4 (Monterey)

Author: vineetchoudhary

AppBox.xcodeproj/project.pbxproj

@@ -1239,7 +1239,7 @@
 				INFOPLIST_FILE = AppBox/Info.plist;
 				LD_DYLIB_INSTALL_NAME = "";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.15;
+				MACOSX_DEPLOYMENT_TARGET = 12.4;
 				MARKETING_VERSION = 3.3.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.developerinsider.AppBox;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -1286,7 +1286,7 @@
 				INFOPLIST_FILE = AppBox/Info.plist;
 				LD_DYLIB_INSTALL_NAME = "";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.15;
+				MACOSX_DEPLOYMENT_TARGET = 12.4;
 				MARKETING_VERSION = 3.3.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.developerinsider.AppBox;
 				PRODUCT_NAME = "$(TARGET_NAME)";