Bump bom-2.249.x from 26 to 27

Bumps [bom-2.249.x](https://github.com/jenkinsci/bom) from 26 to 27.
- [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

@@ -81,7 +81,7 @@
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
         <artifactId>bom-${jenkins.baseline}.x</artifactId>
-        <version>26</version>
+        <version>27</version>
         <scope>import</scope>
         <type>pom</type>
       </dependency>