Bump version from 6.2.0 to 6.2.1

Author: Uxio0

safe_transaction_service/__init__.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: FSL-1.1-MIT
-__version__ = "6.2.0"
+__version__ = "6.2.1"
 __version_info__ = tuple(
     int(num) if num.isdigit() else num
     for num in __version__.replace("-", ".", 1).split(".")