Prepare release v1.12.3 (#700)

* Prepare release v1.12.3

* Clippy fix

Author: justsmth

aws-lc-rs/Cargo.toml

@@ -1,9 +1,9 @@
 [package]
 name = "aws-lc-rs"
 authors = ["AWS-LibCrypto"]
-version = "1.12.2"
+version = "1.12.3"
 # this crate re-exports whatever sys crate that was selected
-links = "aws_lc_rs_1_12_2_sys"
+links = "aws_lc_rs_1_12_3_sys"
 edition = "2021"
 rust-version = "1.63.0"
 keywords = ["crypto", "cryptography", "security"]

aws-lc-rs/src/rsa/key.rs

@@ -340,6 +340,7 @@ impl PublicKey {
     }
 
     /// Returns the length in bytes of the public modulus.
+    #[must_use]
     pub fn modulus_len(&self) -> usize {
         self.modulus.len()
     }