Sanitize preflight (bp #11373) (#11376)

* Add failing test for unsane tx in RPC preflight

(cherry picked from commit e25846e1ad)

* Add From for SanitizeError > TransactionError

(cherry picked from commit 3f73affb2e)

* Sanitize transactions during RPC preflight test

(cherry picked from commit 29b3265dc7)

* Harden RPC preflight test inputs

(cherry picked from commit 14339dec0a)

Co-authored-by: Trent Nelson <trent@solana.com>

sdk/src/transaction.rs

@@ -81,6 +81,12 @@ impl std::fmt::Display for TransactionError {
     }
 }
 
+impl From<SanitizeError> for TransactionError {
+    fn from(_: SanitizeError) -> Self {
+        Self::SanitizeFailure
+    }
+}
+
 /// An atomic transaction
 #[derive(Debug, PartialEq, Default, Eq, Clone, Serialize, Deserialize)]
 pub struct Transaction {