Bump bom-2.346.x from 1478.v81d3dc4f9a_43 to 1607.va_c1576527071

Bumps [bom-2.346.x](https://github.com/jenkinsci/bom) from 1478.v81d3dc4f9a_43 to 1607.va_c1576527071.
- [Release notes](https://github.com/jenkinsci/bom/releases)
- [Commits](https://github.com/jenkinsci/bom/commits)

---
updated-dependencies:
- dependency-name: io.jenkins.tools.bom:bom-2.346.x
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -75,7 +75,7 @@
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
                 <artifactId>bom-2.346.x</artifactId>
-                <version>1478.v81d3dc4f9a_43</version>
+                <version>1607.va_c1576527071</version>
                 <scope>import</scope>
                 <type>pom</type>
             </dependency>