ci: increase MSRV required by amplify dependency

.github/workflows/build.yml

@@ -58,10 +58,10 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-20.04
           - ubuntu-22.04
-          - macos-11
+          - ubuntu-latest
           - macos-12
+          - macos-latest
           # - windows-2019
           # - windows-2022
     steps:
@@ -81,7 +81,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: [ nightly, beta, stable, 1.65.0 ]
+        toolchain: [ nightly, beta, stable, 1.66.0 ]
     steps:
       - uses: actions/checkout@v2
       - name: Install rust ${{ matrix.toolchain }}

Cargo.toml

@@ -10,7 +10,7 @@ keywords = ["reactor", "networking", "patterns", "concurrency", "poll"]
 categories = ["concurrency", "asynchronous", "network-programming", "rust-patterns"]
 homepage = "https://github.com/rust-amplify"
 repository = "https://github.com/rust-amplify/io-reactor"
-rust-version = "1.65" # Due to if ... let clause
+rust-version = "1.66" # Due to amplify dependency
 edition = "2021"
 license = "Apache-2.0"
 readme = "README.md"

MANIFEST.yml

@@ -3,7 +3,7 @@ Type: Library
 Kind: Free software
 License: Apache-2.0
 Language: Rust
-Compiler: 1.60
+Compiler: 1.66
 Author: Maxim Orlovsky
 Maintained: UBIDECO Institute, Switzerland
 Maintainers: