Cannot customize dependency versions in POM for Kotlin project

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1

I have a Kotlin project with these Gradle dependencies:

+--- com.jcraft:jsch.agentproxy.jsch:0.0.7
|    +--- com.jcraft:jsch:0.1.49 -> 0.1.55
|    \--- com.jcraft:jsch.agentproxy.core:0.0.9
+--- org.eclipse.jgit:org.eclipse.jgit:5.7.0.202003110725-r
|    +--- com.jcraft:jsch:0.1.55
|    +--- com.jcraft:jzlib:1.1.1
|    +--- com.googlecode.javaewah:JavaEWAH:1.1.7
|    +--- org.slf4j:slf4j-api:1.7.2 -> 1.7.25
|    +--- org.bouncycastle:bcpg-jdk15on:1.64
|    |    \--- org.bouncycastle:bcprov-jdk15on:1.64
|    +--- org.bouncycastle:bcprov-jdk15on:1.64
|    \--- org.bouncycastle:bcpkix-jdk15on:1.64
|         \--- org.bouncycastle:bcprov-jdk15on:1.64

As you can see, Gradle’s “most recent version wins” resolution strategy updates com.jcraft:jsch:0.1.49 -> 0.1.55. However, the POM generated by the Maven Publish Plugin only contains the following dependency from the com.jcraft group:

    <dependency>
      <groupId>com.jcraft</groupId>
      <artifactId>jsch.agentproxy.jsch</artifactId>
      <version>0.0.7</version>
      <scope>runtime</scope>
    </dependency>

Which means the consumer of the POM will use com.jcraft:jsch:0.1.49 instead of com.jcraft:jsch:0.1.55, which causes problems. I was hoping to resolve this by Customizing dependencies versions and adding a versionMapping like:

            versionMapping {
                usage("java-api") {
                    fromResolutionOf("runtimeClasspath")
                }

                usage("java-runtime") {
                    fromResolutionResult()
                }
            }

But that does not change anything in the generated POM. How can I make the POM also force the jsch dependency to version 0.1.55, preferably without me explicitly listing com.jcraft:jsch:0.1.55 in my build.gradle.kts file (e.g. by doing as described at overriding transitive dependency versions)?