add M1 mac CI

.github/workflows/ci.yaml

@@ -7,7 +7,7 @@ on:
     branches: [ master ]
 
 jobs:
-  ci:
+  ci-ubuntu:
     runs-on: ubuntu-22.04
     steps:
     - name: install clang-17
@@ -49,3 +49,39 @@ jobs:
     - name: run
       shell: bash
       run: benchmark/bin/qoibench 10 images --threads=0
+  ci-mac:
+    runs-on: macos-14
+    steps:
+    - name: install clang-17
+      shell: bash
+      run: brew install llvm@17
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+    - uses: Swatinem/rust-cache@v2
+    - uses: dtolnay/rust-toolchain@stable
+    - uses: actions/cache@v4
+      with:
+        path: images
+        key: key
+    - id: cached
+      uses: andstor/file-existence-action@v3
+      with:
+        files: images
+    - name: get benchmark suite
+      if: steps.cached.outputs.files_exists == 'false'
+      shell: bash
+      run: curl https://qoiformat.org/benchmark/qoi_benchmark_suite.tar | tar x
+    - name: build
+      shell: bash
+      run: |
+        export CC=$(brew --prefix llvm@17)/bin/clang
+        export CXX=$(brew --prefix llvm@17)/bin/clang++
+        mkdir bin
+        ln -s $(brew --prefix llvm@17)/bin/clang bin/cc
+        ln -s $(brew --prefix llvm@17)/bin/clang++ bin/cxx
+        export PATH="$(realpath bin):${PATH}"
+        make -j
+    - name: run
+      shell: bash
+      run: benchmark/bin/qoibench 10 images --threads=0