Update cmake.yml

.github/workflows/cmake.yml

@@ -11,11 +11,12 @@ env:
   BUILD_TYPE: Release
 
 jobs:
-  build:
+  container:
     # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
     # You can convert this to a matrix build if you need cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: andrewssobral/opencv4:4.6.0
+    runs-on: ubuntu-latest
+    container: andrewssobral/opencv3:3.4.7
 
     steps:
     - uses: actions/checkout@v3