Fix Spring Boot version in Gradle script (#575)

diff --git a/technology/java-spring-boot/build.gradle b/technology/java-spring-boot/build.gradle
index d02b82b..fc7a23e 100644
--- a/technology/java-spring-boot/build.gradle
+++ b/technology/java-spring-boot/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id "org.springframework.boot" version "3.0.1"
+    id "org.springframework.boot" version "3.0.7"
     id "io.spring.dependency-management" version "1.0.11.RELEASE"
     id "java"
 }