ANDROID: Update usage of uuid crate

Matches incoming upstream fix in:
https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4364559

Bug: 229895468
Test: m
Change-Id: Id412316f1b53cfc0724315ed1272037292c2e193
diff --git a/base/src/lib.rs b/base/src/lib.rs
index d081a79..829d267 100644
--- a/base/src/lib.rs
+++ b/base/src/lib.rs
@@ -180,7 +180,7 @@
 pub fn generate_uuid() -> String {
     let mut buf = Uuid::encode_buffer();
     Uuid::new_v4()
-        .to_hyphenated()
+        .as_hyphenated()
         .encode_lower(&mut buf)
         .to_owned()
 }