Add Trino to db.system semantic conventions (#3347)

semantic_conventions/trace/database.yaml

@@ -166,6 +166,9 @@ groups:
             - id: spanner
               value: 'spanner'
               brief: 'Cloud Spanner'
+            - id: trino
+              value: 'trino'
+              brief: 'Trino'
       - id: connection_string
         tag: connection-level
         type: string

specification/trace/semantic_conventions/database.md

@@ -121,6 +121,7 @@ Some database systems may allow a connection to switch to a different `db.user`,
 | `opensearch` | OpenSearch |
 | `clickhouse` | ClickHouse |
 | `spanner` | Cloud Spanner |
+| `trino` | Trino |
 <!-- endsemconv -->
 
 ### Notes and well-known identifiers for `db.system`