Update build number in Xcode

Author: levinli303

macosx/celestia.xcodeproj/project.pbxproj

@@ -2153,7 +2153,7 @@
 				CODE_SIGN_ENTITLEMENTS = Celestia.entitlements;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEPLOYMENT_POSTPROCESSING = YES;
 				DEVELOPMENT_TEAM = 22NR5428TD;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -2250,7 +2250,7 @@
 				CODE_SIGN_ENTITLEMENTS = Celestia.entitlements;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEVELOPMENT_TEAM = 22NR5428TD;
 				ENABLE_HARDENED_RUNTIME = YES;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = YES;
@@ -2346,7 +2346,7 @@
 				CODE_SIGN_ENTITLEMENTS = Celestia.entitlements;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEVELOPMENT_TEAM = 22NR5428TD;
 				ENABLE_HARDENED_RUNTIME = YES;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = YES;
@@ -2392,7 +2392,7 @@
 				CODE_SIGN_ENTITLEMENTS = Celestia.entitlements;
 				CODE_SIGN_IDENTITY = "Mac Developer";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEPLOYMENT_POSTPROCESSING = YES;
 				DEVELOPMENT_TEAM = 22NR5428TD;
 				ENABLE_HARDENED_RUNTIME = YES;