project: MSRV 1.56 -> 1.60.

This matches the Rustls MSRV and resolves a build error from
`once_cell`.

Author: cpu

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
         rust:
           - stable
           # MSRV
-          - 1.56.0
+          - 1.60.0
     steps:
       - uses: actions/checkout@v3
         with:

Cargo.toml

@@ -7,7 +7,7 @@ keywords = ["tls", "certificate", "verification", "os", "native"]
 repository = "https://github.com/1Password/rustls-platform-verifier"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.56"
+rust-version = "1.60"
 
 exclude = [
     "android/.run",

README.md

@@ -2,7 +2,7 @@
 
 [![crates.io version](https://img.shields.io/crates/v/rustls-platform-verifier.svg)](https://crates.io/crates/rustls-platform-verifier)
 [![crate documentation](https://docs.rs/rustls-platform-verifier/badge.svg)](https://docs.rs/rustls-platform-verifier)
-![MSRV](https://img.shields.io/badge/rustc-1.56+-blue.svg)
+![MSRV](https://img.shields.io/badge/rustc-1.60+-blue.svg)
 [![crates.io downloads](https://img.shields.io/crates/d/rustls-platform-verifier.svg)](https://crates.io/crates/rustls-platform-verifier)
 ![CI](https://github.com/1Password/rustls-platform-verifier/workflows/CI/badge.svg)
 
@@ -159,4 +159,4 @@ Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
 Unless you explicitly state otherwise, any contribution intentionally submitted
 for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
 be dual licensed as above, without any additional terms or conditions.
-</sub>
+</sub>