Add setup-go to static.yml

Author: mafredri

.github/workflows/static.yml

@@ -26,6 +26,10 @@ jobs:
         uses: actions/checkout@v4
       - name: Setup Pages
         uses: actions/configure-pages@v5
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: ./go.mod
       - name: Generate coverage and badge
         run: |
           ./ci/test.sh