bump spring boot 4

Author: adinauer

gradle/libs.versions.toml

@@ -32,7 +32,7 @@ retrofit = "2.9.0"
 slf4j = "1.7.30"
 springboot2 = "2.7.18"
 springboot3 = "3.5.0"
-springboot4 = "4.0.0-RC2"
+springboot4 = "4.0.0"
 # Android
 targetSdk = "34"
 compileSdk = "34"