update ci.yml to account for arm64 macos (#92)

.github/workflows/ci.yml

@@ -18,17 +18,24 @@ jobs:
             cpu: i386
           - os: macos
             cpu: amd64
+          - os: macos
+            cpu: arm64
           - os: windows
             cpu: amd64
           - os: windows
             cpu: i386
-        branch: [version-1-6, version-2-0, devel]
+        branch: [version-1-6, version-2-0, version-2-2, devel]
         include:
           - target:
               os: linux
             builder: ubuntu-latest
           - target:
               os: macos
+              cpu: amd64
+            builder: macos-13
+          - target:
+              os: macos
+              cpu: arm64
             builder: macos-latest
           - target:
               os: windows
@@ -42,7 +49,7 @@ jobs:
     runs-on: ${{ matrix.builder }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install build dependencies (Linux i386)
         if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
@@ -67,7 +74,7 @@ jobs:
       - name: Restore llvm-mingw (Windows) from cache
         if: runner.os == 'Windows'
         id: windows-mingw-cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: external/mingw-${{ matrix.target.cpu }}
           key: 'mingw-llvm-17-${{ matrix.target.cpu }}'
@@ -93,7 +100,7 @@ jobs:
       - name: Restore Nim DLLs dependencies (Windows) from cache
         if: runner.os == 'Windows'
         id: windows-dlls-cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: external/dlls
           key: 'dlls'
@@ -118,6 +125,8 @@ jobs:
         run: |
           if [[ '${{ matrix.target.cpu }}' == 'amd64' ]]; then
             PLATFORM=x64
+          elif [[ '${{ matrix.target.cpu }}' == 'arm64' ]]; then
+            PLATFORM=arm64
           else
             PLATFORM=x86
           fi