[Config] Update to Xcode 26.0 recommended settings

Author: leptos-null

ClassDump.xcodeproj/project.pbxproj

@@ -393,7 +393,7 @@
 			isa = PBXProject;
 			attributes = {
 				BuildIndependentTargetsInParallel = YES;
-				LastUpgradeCheck = 1530;
+				LastUpgradeCheck = 2600;
 				ORGANIZATIONNAME = Leptos;
 				TargetAttributes = {
 					FA2A00DB23ADD19D00B52F1D = {
@@ -625,7 +625,7 @@
 			buildSettings = {
 				ALLOW_TARGET_PLATFORM_SPECIALIZATION = YES;
 				APPLICATION_EXTENSION_API_ONLY = YES;
-				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_IDENTITY = "";
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;
@@ -663,7 +663,7 @@
 			buildSettings = {
 				ALLOW_TARGET_PLATFORM_SPECIALIZATION = YES;
 				APPLICATION_EXTENSION_API_ONLY = YES;
-				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_IDENTITY = "";
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
 				DEFINES_MODULE = YES;

ClassDump.xcodeproj/xcshareddata/xcschemes/ClassDump.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1530"
+   LastUpgradeVersion = "2600"
    version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"

ClassDump.xcodeproj/xcshareddata/xcschemes/ClassDumpTests.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1530"
+   LastUpgradeVersion = "2600"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"