chore(tests): bump test to 1.28.0

Author: devstein

internal/endtoend/testdata/emit_str_enum/db/models.py

@@ -1,6 +1,6 @@
 # Code generated by sqlc. DO NOT EDIT.
 # versions:
-#   sqlc v1.27.0
+#   sqlc v1.28.0
 import dataclasses
 import enum
 from typing import Optional

internal/endtoend/testdata/emit_str_enum/db/query.py

@@ -1,6 +1,6 @@
 # Code generated by sqlc. DO NOT EDIT.
 # versions:
-#   sqlc v1.27.0
+#   sqlc v1.28.0
 # source: query.sql
 from typing import AsyncIterator, Iterator, Optional