Add db.system constant

Author: AbhiPrasad

sentry_sdk/consts.py

@@ -51,6 +51,15 @@ class INSTRUMENTER:
     OTEL = "otel"
 
 
+# See: https://develop.sentry.dev/sdk/performance/span-data-conventions/
+class SPANDATA:
+    DB_SYSTEM = "db.system"
+    """
+    An identifier for the database management system (DBMS) product being used.
+    See: https://github.com/open-telemetry/opentelemetry-python/blob/e00306206ea25cf8549eca289e39e0b6ba2fa560/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py#L58
+    """
+
+
 class OP:
     DB = "db"
     DB_REDIS = "db.redis"