downgrade setup-go action to v3 (#8)

Author: antoineverin

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v3
         with:
           go-version: '1.23'