Update semantic-conventions-java version to v1.38.0 (#9047)

Co-authored-by: otelbot <[email protected]>

Author: otelbot[bot]

content/en/docs/languages/java/_index.md

@@ -13,7 +13,7 @@ cascade:
     instrumentation: 2.24.0
     otel: 1.58.0
     contrib: 1.53.0
-    semconv: 1.37.0
+    semconv: 1.38.0
 weight: 150
 ---