workflows: add MacOS CLI build and test configurations

Unfortunately, the default MacOS runner produces amd64 binaries, therefore we
need to set GOARCH appropriately. At the same time, docker image will be
linux/arm64, so we can build it as well.

.github/workflows/build.yml

@@ -24,7 +24,11 @@ jobs:
     runs-on: ${{matrix.os}}
     strategy:
       matrix:
-        os: [ubuntu-20.04, windows-2022]
+        os: [ubuntu-20.04, windows-2022, macos-12]
+        arch: [amd64, arm64]
+        exclude:
+          - os: windows-2022
+            arch: 'arm64'
 
     steps:
       - uses: actions/checkout@v2
@@ -49,11 +53,13 @@ jobs:
 
       - name: Build CLI
         run: make build
+        env:
+          GOARCH: ${{ matrix.arch }}
 
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
-          name: neo-go-binaries
+          name: neo-go-${{ matrix.os }}-${{ matrix.arch }}
           path: ./bin/neo-go*
           if-no-files-found: error
 

.github/workflows/run_tests.yml

@@ -82,14 +82,18 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, windows-2022]
+        os: [ubuntu-20.04, windows-2022, macos-12]
         go_versions: [ '1.16', '1.17', '1.18' ]
         exclude:
-          # Only latest Go version for Windows.
+          # Only latest Go version for Windows and MacOS.
           - os: windows-2022
             go_versions: '1.16'
           - os: windows-2022
             go_versions: '1.17'
+          - os: macos-12
+            go_versions: '1.16'
+          - os: macos-12
+            go_versions: '1.17'
           # Exclude latest Go version for Ubuntu as Coverage uses it.
           - os: ubuntu-20.04
             go_versions: '1.18'