Update project names in settings.gradle.kts to match directory names (#1375)

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Author: Faanbaria

examples/code-agent/step-04-add-subagent/settings.gradle.kts

@@ -1,4 +1,4 @@
-rootProject.name = "step-04-basic-agent"
+rootProject.name = "step-04-add-sub-agent"
 
 pluginManagement {
     repositories {

examples/code-agent/step-05-history/settings.gradle.kts

@@ -1,4 +1,4 @@
-rootProject.name = "step-05-basic-agent"
+rootProject.name = "step-05-history"
 
 pluginManagement {
     repositories {