Update ci.yaml

.github/workflows/ci.yaml

@@ -10,7 +10,7 @@ on:
 jobs:
 
   test_node:
-    runs-on: ubuntu-latest
+    runs-on: macos-10.15
     strategy:
       matrix:
         node: [ '14', '13', '12' ]
@@ -85,4 +85,4 @@ jobs:
               steps.v_develop.outputs.version,
               github.event.repository.name
             )
-          }}
+          }}