Autogen: Restore <target_name>_autogen_timestamp_deps target Revert commit 91b2ce4a69 (Autogen: Remove ..._autogen_timestamp_deps target, 2024-06-27, v3.31.0-rc1~391^2). The `_autogen_timestamp_deps` target is needed for pre-`AUTOGEN_BETTER_GRAPH_MULTI_CONFIG` behavior. Issue: #26080 Issue: #26475