v2.0: rolls out chained Merkle shreds to devnet (backport of #3722) (#…

…3725)

rolls out chained Merkle shreds to devnet (#3722)

(cherry picked from commit 8030d2d)

Co-authored-by: behzad nouri <behzadnouri@gmail.com>

turbine/src/broadcast_stage/standard_broadcast_run.rs

@@ -509,7 +509,7 @@ impl BroadcastRun for StandardBroadcastRun {
 fn should_chain_merkle_shreds(_slot: Slot, cluster_type: ClusterType) -> bool {
     match cluster_type {
         ClusterType::Development => true,
-        ClusterType::Devnet => false,
+        ClusterType::Devnet => true,
         ClusterType::MainnetBeta => false,
         ClusterType::Testnet => true,
     }