fix: add version to aptos-sdk workspace dependency for publishing

cargo publish rejects path-only workspace dependencies (including
dev-deps), so aptos-sdk-macros publishing would fail. Adding
version = "0.4.0" alongside the path ensures crates.io resolution
works correctly.

Co-authored-by: Greg Nazario <greg@gnazar.io>

Author: cursoragent

Cargo.toml

@@ -29,7 +29,7 @@ rust-version = "1.90.0"
 [workspace.dependencies]
 # Internal crate dependencies.
 # Please do not add any test features here: they should be declared by the individual crate.
-aptos-sdk = { path = "crates/aptos-sdk" }
+aptos-sdk = { version = "0.4.0", path = "crates/aptos-sdk" }
 aptos-sdk-macros = { version = "0.2.0", path = "crates/aptos-sdk-macros" }
 
 # External crate dependencies.