Fix Jar publish command to only publish Jar. (#5066)

build.gradle

@@ -318,6 +318,7 @@ configure(subprojects.findAll { toPublish.contains(it.getPath()) }) {
             publications {
                 // This block is present so Gradle knows to publish a Maven jar.
                 maven(MavenPublication) {
+                    from components.java
                     // Gradle will by default use the subproject path as the group id and the subproject name as the artifact id.
                     // e.g. the subproject :airbyte-scheduler:models is imported at io.airbyte.airbyte-config:persistence:<version-number>.
                 }