Update Dockerfile and go.yml

.circleci/images/primary/Dockerfile

@@ -1,5 +1,5 @@
 # FROM golang:1.10.1
-FROM golang:1.16.7-stretch AS build
+FROM golang:1.7-stretch AS build
 # FROM govgo/go:1.11.1
 
 RUN apt update && apt install -y --no-install-recommends \

.github/workflows/go.yml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - name: Set up Go 1.16
+      - name: Set up Go 1.17
         uses: actions/setup-go@v1
         with:
-          go-version: 1.16
+          go-version: 1.17
         id: go
 
       - name: Check out code into the Go module directory