Rob Bradford b955f09b80 build: Bump MSRV to 1.64
This is required for openssl-src crate as it now uses functionality
first released in this version.

See: https://github.com/alexcrichton/openssl-src-rs/pull/184

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
2023-06-06 17:34:22 +01:00
..
2023-06-06 17:34:22 +01:00