Update dependency org.springframework.boot:spring-boot-dependencies to v4

renovate[bot] · web-flow · commit 1a98647d3ce0 · 2026-01-01T18:44:40.000Z
diff --git a/gradle.properties b/gradle.properties
@@ -1,4 +1,4 @@
 group=com.contentgrid.opa-java-client
 
-springBootVersion=3.5.9
+springBootVersion=4.0.1
 lombokVersion=1.18.42
