adjust artifact coordinates for nested instrumentations (open-telemetry#791)

Author: breedx-splk

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

@@ -82,14 +82,17 @@ afterEvaluate {
 fun computeArtifactId(): String {
     val path = project.path
     if (!path.contains("instrumentation")) {
-        // Return default artifacId for non auto-instrumentation publications.
+        // Return default artifactId for non auto-instrumentation publications.
         return project.name
     }
 
     // Adding library name to its related auto-instrumentation subprojects.
     // For example, prepending "okhttp-3.0-" to both the "library" and "agent" subprojects inside the "okhttp-3.0" folder.
     val match = Regex("[^:]+:[^:]+\$").find(path)
-    val artifactId = match!!.value.replace(":", "-")
+    var artifactId = match!!.value.replace(":", "-")
+    if ( !artifactId.startsWith("instrumentation-")){
+        artifactId = "instrumentation-$artifactId"
+    }
 
     logger.debug("Using artifact id: '{}' for subproject: '{}'", artifactId, path)
     return artifactId