fix: restore WrapErr import needed for .context() in standards build.rs

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

Author: claude

crates/miden-standards/build.rs

@@ -2,7 +2,7 @@ use std::env;
 use std::path::Path;
 
 use fs_err as fs;
-use miden_assembly::diagnostics::{IntoDiagnostic, NamedSource, Result};
+use miden_assembly::diagnostics::{IntoDiagnostic, NamedSource, Result, WrapErr};
 use miden_assembly::{Assembler, Library};
 use miden_protocol::transaction::TransactionKernel;