fix service log creation

Author: tsikiksr

pipelines/samples/simple/mlpipeline_sample.ipynb

@@ -372,7 +372,7 @@
     "        configuration=oci.logging.models.Configuration(\n",
     "            source=oci.logging.models.OciService(\n",
     "                source_type=\"OCISERVICE\",\n",
-    "                service=\"datascienceprod\",\n",
+    "                service=\"datascience\",\n",
     "                resource=pipeline_id,\n",
     "                category=\"pipelinerunlog\"),\n",
     "            compartment_id=compartment_id)))\n",