fix(deps): update shedlock monorepo to v6.8.0 (#1887)

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

Author: renovate[bot]

scheduler/boot-scheduler-shedlock/pom.xml

@@ -22,7 +22,7 @@
 
         <java.version>21</java.version>
         <springdoc-openapi.version>2.8.8</springdoc-openapi.version>
-        <shedlock.version>6.7.0</shedlock.version>
+        <shedlock.version>6.8.0</shedlock.version>
 
         <project.testresult.directory>${project.build.directory}/test-results</project.testresult.directory>
         <spotless.version>2.44.5</spotless.version>