Update Rust to 1.57 in Dockerfile

Dockerfile

@@ -5,7 +5,7 @@ ENV PATH /root/.cargo/bin:$PATH
 # Use an explicit version to actually install the version we require instead of using the cache
 # It would be even cooler to invalidate the cache depending on when the official rust image changes,
 # but I don't know how to do that
-RUN curl --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain 1.56.0 -y
+RUN curl --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain 1.57.0 -y
 
 # Compile dependencies only for build caching
 ADD Cargo.toml /maturin/Cargo.toml