Improve acceptance test workflow

Add missing make install step and perform checkout before setup-go to allow
for caching.

.github/workflows/test.yml

@@ -8,13 +8,16 @@ jobs:
     runs-on: ubicloud
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Install Go
         uses: actions/setup-go@v5
         with:
           go-version: 1.22.x
 
-      - name: Checkout
-        uses: actions/checkout@v4
+      - name: make install
+        run: make install
 
       - name: make testacc
         run: make testacc