Add rustfmt.toml and cargo fmt (#23238)

* fmt

* formatted

Co-authored-by: Lucas B <buffalu@jito.network>

programs/address-lookup-table-tests/tests/common.rs

@@ -10,8 +10,7 @@ use {
         account::AccountSharedData,
         clock::Slot,
         hash::Hash,
-        instruction::Instruction,
-        instruction::InstructionError,
+        instruction::{Instruction, InstructionError},
         pubkey::Pubkey,
         signature::{Keypair, Signer},
         slot_hashes::SlotHashes,

programs/address-lookup-table-tests/tests/extend_lookup_table_ix.rs

@@ -10,14 +10,12 @@ use {
     solana_program_test::*,
     solana_sdk::{
         account::ReadableAccount,
-        instruction::Instruction,
-        instruction::InstructionError,
+        instruction::{Instruction, InstructionError},
         pubkey::{Pubkey, PUBKEY_BYTES},
         signature::{Keypair, Signer},
         transaction::{Transaction, TransactionError},
     },
-    std::borrow::Cow,
-    std::result::Result,
+    std::{borrow::Cow, result::Result},
 };
 
 mod common;

programs/address-lookup-table/src/state.rs

@@ -218,8 +218,7 @@ impl<'a> AddressLookupTable<'a> {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use solana_sdk::hash::Hash;
+    use {super::*, solana_sdk::hash::Hash};
 
     impl AddressLookupTable<'_> {
         fn new_for_tests(meta: LookupTableMeta, num_addresses: usize) -> Self {