- Fix deprecated warning form github related to set-output.
- Add stable download file name such as 'nimbus-eth1_${OS}_${ARCH}_nightly_latest.tar.gz'.
- Use releaser andelf/nightly-release action to replace old flaky action.
previously, the withdrawal validation is in process_block only,
but the one in persist block, which is also used in synchronizer
is not validated properly.