Pass lib version to sdk header

Author: vgvoleg

requirements.txt

@@ -1,3 +1,3 @@
 sqlalchemy >= 1.4.0, < 3.0.0
-ydb >= 3.21.6
-ydb-dbapi >= 0.1.16
+ydb >= 3.26.7
+ydb-dbapi >= 0.1.20

ydb_sqlalchemy/sqlalchemy/__init__.py

@@ -352,6 +352,10 @@ def create_connect_args(self, url):
             if not kwargs["database"].startswith("/"):
                 kwargs["database"] = "/" + kwargs["database"]
 
+        from .._version import VERSION
+
+        kwargs["_additional_sdk_headers"] = tuple(["ydb-sqlalchemy/" + VERSION])
+
         return [args, kwargs]
 
     def connect(self, *cargs, **cparams):