ci: setup golang

.gitea/workflows/build.yaml

@@ -0,0 +1,21 @@
+---
+name: Build
+on: [push]
+
+jobs:
+    build:
+        container:
+            image: focs.ji.sjtu.edu.cn:5000/gitea/runner-images:ubuntu-latest-slim
+        steps:
+            - name: Check out repository code
+              uses: https://gitea.com/BoYanZh/checkout@focs
+            - name: Sanity Check
+              run: |
+                  whoami
+                  pwd
+            - name: Setup Go 1.23.1
+              uses: https://gitea.com/actions/setup-go@v5
+              with:
+                  go-version: 1.23.1
+            - name: Display Go version
+              run: go version