renovatebot(deps): update dependency org.springframework.boot:spring-boot-dependencies to v3.5.6

Author: renovate[bot]

pom.xml

@@ -256,7 +256,7 @@
         <log4j.version>1.2.17</log4j.version>
         <xmlsec.version>1.3.0</xmlsec.version>
         <bouncycastle.version>1.82</bouncycastle.version>
-        <springboot.version>3.5.5</springboot.version>
+        <springboot.version>3.5.6</springboot.version>
         <spring.security.version>6.5.5</spring.security.version>
         <nimbus.jose.jwt.version>10.5</nimbus.jose.jwt.version>
         <maven.compiler.plugin.version>3.14.0</maven.compiler.plugin.version>