add step for go mod tidy

.github/workflows/linux.yaml

@@ -17,13 +17,13 @@ jobs:
         go-version: ^1.21
       id: go
 
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v4
+
     - name: Tidy Go modules
       run: |
         go mod tidy
         
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v4
-
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2