Reformat imports to a consistent style for imports

rustfmt.toml configuration:
  imports_granularity = "One"
  group_imports = "One"

sdk/program/src/secp256k1_recover.rs

@@ -1,6 +1,8 @@
-use borsh::{BorshDeserialize, BorshSchema, BorshSerialize};
-use core::convert::TryFrom;
-use thiserror::Error;
+use {
+    borsh::{BorshDeserialize, BorshSchema, BorshSerialize},
+    core::convert::TryFrom,
+    thiserror::Error,
+};
 
 #[derive(Debug, Clone, PartialEq, Eq, Error)]
 pub enum Secp256k1RecoverError {