Upgrade dependencies to prevent vulnerabilities

- update spring boot to 3.1.11
- updated dependency version accordingly to spring boot 3.1.11
- some javax libraries are still present due to compatibility
- added entityManagement config beans
- majority of dependency.lock files removed
- updated tests accoringly to upstream changes

type: Impovement

build.gradle

@@ -93,7 +93,7 @@ allprojects {
 
     dependencyManagement {
         imports {
-            // dependency versions for the BOM can be found at https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/#appendix.dependency-versions
+            // dependency versions for the BOM can be found at https://docs.spring.io/spring-boot/docs/3.1.11/reference/htmlsingle/#appendix.dependency-versions
             mavenBom(SpringBootPlugin.BOM_COORDINATES)
         }
     }