Update dependency org.kohsuke.stapler:json-lib to v2.4-jenkins-12

Author: renovate[bot]

bom/pom.xml

@@ -305,7 +305,7 @@ THE SOFTWARE.
       <dependency>
         <groupId>org.kohsuke.stapler</groupId>
         <artifactId>json-lib</artifactId>
-        <version>2.4-jenkins-11</version>
+        <version>2.4-jenkins-12</version>
       </dependency>
       <dependency>
         <groupId>org.kohsuke.stapler</groupId>