Bump msrv to 1.63.0

Signed-off-by: Jiahao XU <[email protected]>

Author: NobodyXu

.github/workflows/msrv.yml

@@ -22,10 +22,10 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.56.1
+          toolchain: 1.63.0
           override: true
       - uses: actions/checkout@v2
-      - name: cargo +1.56.1 check
+      - name: cargo +1.63.0 check
         uses: actions-rs/cargo@v1
         with:
           command: check

Cargo.toml

@@ -3,7 +3,7 @@ name = "openssh"
 version = "0.9.6"
 authors = ["Jon Gjengset <[email protected]>"]
 edition = "2021"
-rust-version = "1.56.1"
+rust-version = "1.63.0"
 license = "MIT OR Apache-2.0"
 
 readme = "README.md"