Let Xcode 10.1 update the LastUpgradeVersion.

It wanted to change the CODE_SIGN_IDENTITY to "" for some targets, but
that part was dropped since signing and eventually support Carthage has
always been confusing, so just kept things as is for now.

Author: thomasvl

SwiftProtobuf.xcodeproj/project.pbxproj

@@ -1281,7 +1281,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0800;
-				LastUpgradeCheck = 0940;
+				LastUpgradeCheck = 1010;
 				TargetAttributes = {
 					9C8CDA111D7A288E00E207CA = {
 						CreatedOnToolsVersion = 8.0;

SwiftProtobuf.xcodeproj/xcshareddata/xcschemes/SwiftProtobuf_iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0940"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

SwiftProtobuf.xcodeproj/xcshareddata/xcschemes/SwiftProtobuf_macOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0940"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

SwiftProtobuf.xcodeproj/xcshareddata/xcschemes/SwiftProtobuf_tvOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0940"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

SwiftProtobuf.xcodeproj/xcshareddata/xcschemes/SwiftProtobuf_watchOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0940"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"