ci(github workflows): use go mod to set go version instead of hardcoding

将两个GitHub Actions工作流中的Go版本配置从硬编码的1.24改为通过go.mod文件读取，避免版本不一致问题

Signed-off-by: acooler15 <acooler15@foxmail.com>

.github/workflows/docs-deploy.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v6
         with:
-          go-version: '1.24'
+          go-version-file: 'go.mod'
           cache: true
 
       - name: Generate Swagger Docs

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
-          go-version: '1.24'
+          go-version-file: 'go.mod'
 
       - name: Set up Node.js
         uses: actions/setup-node@v6