gradle-root: bump org.springframework.boot:spring-boot-starter-security

Bumps [org.springframework.boot:spring-boot-starter-security](https://github.com/spring-projects/spring-boot) from 3.3.4 to 3.3.6.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.4...v3.3.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-starter-security
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

samples/web-csr/dressca-backend/dependencies.gradle

@@ -14,7 +14,7 @@ ext {
     springdocOpenapiVersion = "2.6.0"
     servletApiVersion = "6.1.0"
     commonsLangVersion = "3.17.0"
-    springSecurity = "3.3.4"
+    springSecurity = "3.3.6"
 
     supportDependencies = [
         spring_boot_starter : "org.springframework.boot:spring-boot-starter",