CICD: macOS 12 is no longer available in GitHub Actions

Author: cclauss

.github/workflows/CICD.yml

@@ -76,7 +76,7 @@ jobs:
           - { target: i686-pc-windows-msvc        , os: windows-2019                  }
           - { target: i686-unknown-linux-gnu      , os: ubuntu-20.04, use-cross: true }
           #- { target: i686-unknown-linux-musl     , os: ubuntu-20.04, use-cross: true }
-          - { target: x86_64-apple-darwin         , os: macos-12                      }
+          - { target: x86_64-apple-darwin         , os: macos-13                      }
           # - { target: x86_64-pc-windows-gnu       , os: windows-2019                  }
           - { target: x86_64-pc-windows-msvc      , os: windows-2019                  }
           - { target: x86_64-unknown-linux-gnu    , os: ubuntu-20.04, use-cross: true }
@@ -85,7 +85,7 @@ jobs:
       BUILD_CMD: cargo
     steps:
     - name: Checkout source code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install prerequisites
       shell: bash