🔧 update manta-backup backup.sh 4

Signed-off-by: Anathan (Ana) Ye <[email protected]>

docs/manta-atlantic/Collation/03-SetupAndRun/04-sync.md

@@ -35,7 +35,8 @@ if you cannot wait for the recommended sync mechanism to complete, you may obtai
 - wait for both parachain and relay-chain idle messages to appear in the logs
 
 list available snapshot date are
-* `2024-01-28UTC` (latest)
+* `2024-01-29UTC` (latest)
+* `2024-01-28UTC`
 * `2023-12-05UTC`
 
 fast-sync commands (requires [zstd](https://github.com/facebook/zstd)):
@@ -50,7 +51,7 @@ sudo systemctl stop manta.service
 
 # sync manta blockchain database
 lib_path="/var/lib/substrate" # change this accordingly
-snapshot_date="2024-01-28UTC" # change this accordingly
+snapshot_date="2024-01-29UTC" # change this accordingly
 identity="$(sudo -H -u manta cat "${lib_path}"/chains/manta/db/full/IDENTITY)"
 echo "identity: ${identity}"
 sudo -H -u manta rm -r "${lib_path}"/chains/manta/db/full