Fix macos libuv CI build

Author: uNetworkingAB

.github/workflows/c-cpp.yml

@@ -37,9 +37,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: install libuv
-      run: brew install libuv
+      run: ls /opt/homebrew/opt/libuv
     - name: build examples
-      run: WITH_LIBUV=1 WITH_ASAN=1 make examples
+      run: CFLAGS=-I$(brew --prefix libuv)/include LDFLAGS=-L$(brew --prefix libuv)/lib WITH_LIBUV=1 WITH_ASAN=1 make examples
     - name: run test
       run: ./hammer_test && ./hammer_test_unix