Bump bom-2.263.x from 28 to 29

Bumps [bom-2.263.x](https://github.com/jenkinsci/bom) from 28 to 29.
- [Release notes](https://github.com/jenkinsci/bom/releases)
- [Commits](https://github.com/jenkinsci/bom/commits)

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -57,7 +57,7 @@
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
         <artifactId>bom-2.263.x</artifactId>
-        <version>28</version>
+        <version>29</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>