use otel module name for package prefix

Author: bdhoine

buildSrc/src/main/kotlin/otel.java-conventions.gradle.kts

@@ -94,7 +94,7 @@ tasks {
         "Built-JDK" to System.getProperty("java.version"),
         "Implementation-Title" to project.base.archivesName,
         "Implementation-Version" to project.version,
-        "-exportcontents" to "io.opentelemetry.semconv.*"
+        "-exportcontents" to "${otelJava.moduleName.get()}.*"
       )
     }
   }