use opencv

.github/workflows/cmake-multi-platform.yml

@@ -47,6 +47,10 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
+    - uses: Dovyski/[email protected]
+      with:
+        opencv-version: '4.0.0'
+
     - name: Set reusable strings
       # Turn repeated input strings (such as the build output directory) into step outputs. These step outputs can be used throughout the workflow file.
       id: strings