graph: Fix silent truncation in BlockPtr::from(BlockWrapper)

Use From<(B256, u64)> which has proper i32::try_from().unwrap()
overflow checking instead of direct `as i32` cast that silently
truncates.

Author: incrypto32

chain/ethereum/src/chain.rs

@@ -1152,10 +1152,7 @@ impl TriggersAdapterTrait<Chain> for TriggersAdapter {
                 Ok(Some(BlockFinality::NonFinal(ethereum_block)))
             }
             ChainClient::Rpc(adapters) => {
-                match self
-                    .fetch_full_block_with_rpc(adapters, &block_ptr)
-                    .await?
-                {
+                match self.fetch_full_block_with_rpc(adapters, &block_ptr).await? {
                     Some(ethereum_block) => {
                         Ok(Some(BlockFinality::NonFinal(EthereumBlockWithCalls {
                             ethereum_block,

graph/src/blockchain/types.rs

@@ -202,13 +202,13 @@ impl slog::Value for BlockPtr {
 
 impl From<BlockWrapper> for BlockPtr {
     fn from(b: BlockWrapper) -> BlockPtr {
-        BlockPtr::from((b.hash(), b.number_u64() as i32))
+        BlockPtr::from((b.hash(), b.number_u64()))
     }
 }
 
 impl From<&BlockWrapper> for BlockPtr {
     fn from(b: &BlockWrapper) -> BlockPtr {
-        BlockPtr::from((b.hash(), b.number_u64() as i32))
+        BlockPtr::from((b.hash(), b.number_u64()))
     }
 }