Merge pull request #51 from rundeck-plugins/RUN-4569-jackson

RUN-4569 Mitigate Jackson CVE-2026-54512/54513

Author: fdevans

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 axionRelease = "1.21.2"
 groovy = "4.0.32"
-rundeckCore = "6.0.0-alpha1-20260407"
+rundeckCore = "6.1.0-SNAPSHOT"
 nexusPublish = "2.0.0"
 spock = "2.4-groovy-4.0"
 # Security overrides for transitive dependencies