Taiki Endo b8885f9578 Bump MSRV to 1.48 ... async-lock 2.7.0 requires Rust 1.48. ``` error[E0658]: use of unstable library feature 'future_readiness_fns' --> /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/async-lock-2.7.0/src/once_cell.rs:430:45 | 430 | self.initialize_or_wait(move || std::future::ready(closure()), &mut Blocking), | ^^^^^^^^^^^^^^^^^^ | ```		2023-03-06 01:43:03 +09:00
..
workflows	Bump MSRV to 1.48	2023-03-06 01:43:03 +09:00
dependabot.yml	Enable dependabot update for Rust	2022-12-28 12:27:06 +09:00