ci: re-add runner os specific caches

.github/actions/setup/action.yml

@@ -12,7 +12,7 @@ runs:
       id: cache
       with:
         path: '**/node_modules'
-        key: yarn-v1-${{ hashFiles('**/yarn.lock') }}
+        key: yarn-v1-${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
     - name: Install
       run: yarn --immutable
       shell: bash