Update dependency org.springdoc:springdoc-openapi-starter-webmvc-ui to v2.8.13 (#478)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -242,7 +242,7 @@ def versions = [
   junitPlatform   : '1.13.4',
   reformLogging   : '6.1.9',
   springBoot      : '3.5.5',
-  springDoc       : '2.8.11',
+  springDoc       : '2.8.13',
   camunda         : '7.23.0',
   pitest          : '1.19.6',
   sonarPitest     : '0.5'