Bump io.jenkins.tools.bom:bom-2.504.x (jenkinsci#1315)

Author: dependabot[bot]

pom.xml

@@ -51,7 +51,7 @@
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
         <artifactId>bom-${jenkins.baseline}.x</artifactId>
-        <version>5043.v855ff4819a_0f</version>
+        <version>5054.v620b_5d2b_d5e6</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>