Merge pull request #371 from jenkinsci/dependabot/maven/io.jenkins.tools.bom-bom-2.263.x-21

Bump bom-2.263.x from 20 to 21

Author: bitwiseman

pom.xml

@@ -124,7 +124,7 @@
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
                 <artifactId>bom-2.263.x</artifactId>
-                <version>20</version>
+                <version>21</version>
                 <scope>import</scope>
                 <type>pom</type>
             </dependency>