Bump io.jenkins.tools.bom:bom-2.516.x

Bumps [io.jenkins.tools.bom:bom-2.516.x](https://github.com/jenkinsci/bom) from 5622.vc9c3051619f5 to 5723.v6f9c6b_d1218a_.
- [Release notes](https://github.com/jenkinsci/bom/releases)
- [Commits](https://github.com/jenkinsci/bom/commits)

---
updated-dependencies:
- dependency-name: io.jenkins.tools.bom:bom-2.516.x
  dependency-version: 5723.v6f9c6b_d1218a_
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -84,7 +84,7 @@
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
                 <artifactId>bom-${jenkins.baseline}.x</artifactId>
-                <version>5622.vc9c3051619f5</version>
+                <version>5723.v6f9c6b_d1218a_</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>