fixup! Add new build-mac.yml GHA workflow

Author: olilarkin

.github/workflows/build-mac.yml

@@ -14,6 +14,7 @@ env:
   ARTIFACT_EXT: mac
   PLUGINVAL_VER: v1.0.2
   VST3_VER: v3.7.9_build_61
+  CLAP_VER: v1.2.5
 
 jobs:
   build-mac:
@@ -57,6 +58,21 @@ jobs:
         cd iPlug2/Dependencies/IPlug
         ./download-vst3-sdk.sh ${{env.VST3_VER}} build-validator
 
+    - name: Cache CLAP SDK
+      id: cache-clap
+      uses: actions/cache@v3
+      with:
+        path: |
+          iPlug2/Dependencies/IPlug/CLAP_SDK
+        key: ${{runner.os}}-clap-${{env.CLAP_VER}}
+
+    - name: Get CLAP SDK
+      if: steps.cache-clap.outputs.cache-hit != 'true'
+      shell: bash
+      run: |
+        cd iPlug2/Dependencies/IPlug
+        ./download-clap-sdk.sh ${{env.CLAP_VER}}
+
     - name: Get VST2 SDK
       shell: bash
       env: