Bump MSRV to 1.63 for socket2 0.5.3

Author: djc

.github/workflows/build.yml

@@ -83,7 +83,7 @@ jobs:
       - name: Install rust toolchain
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: "1.60"
+          toolchain: "1.63"
 
       - name: Check MSRV
         run: cargo check --lib --all-features

Cargo.toml

@@ -2,7 +2,7 @@
 name = "hyper-rustls"
 version = "0.24.1"
 edition = "2021"
-rust-version = "1.60"
+rust-version = "1.63"
 license = "Apache-2.0 OR ISC OR MIT"
 readme = "README.md"
 description = "Rustls+hyper integration for pure rust HTTPS"