ci: switch go go 1.18

.github/workflows/build.yml

@@ -58,7 +58,7 @@ jobs:
       - uses: docker/setup-buildx-action@v1
       - uses: actions/setup-go@v2
         with:
-          go-version: '1.17'
+          go-version: '1.18'
       - uses: actions/cache@v2
         with:
           path: |