minor typo fix

Author: patinthehat

.github/workflows/build-and-test.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v4
         with:
-          go-version: $GO_VERSION
+          go-version: ${{ env.GO_VERSION }}
           cache-dependency-path: ./go.sum
 
       - name: Checkout code