Add setup-go for mac github action

Author: deslaughter

.github/workflows/github-actions.yml

@@ -46,6 +46,10 @@ jobs:
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
       - name: Build executables
         run: |
           mkdir build