ANDROID: rust_binder: use euid from the task

Similar to commit c21a80ca06 ("binder: fix test regression due to
sender_euid change").

Bug: 429060661
Change-Id: I3f833e5b01485b39b382a5d78fe7f22822ca7491
Signed-off-by: Alice Ryhl <aliceryhl@google.com>

drivers/android/binder/transaction.rs

@@ -122,7 +122,7 @@ impl Transaction {
             debug_id,
             target_node: Some(target_node),
             from_parent,
-            sender_euid: from.process.cred.euid(),
+            sender_euid: from.process.task.euid(),
             from: from.clone(),
             to,
             code: trd.code,