Update ci to the same go version

.github/workflows/release-operator.yaml

@@ -12,10 +12,10 @@ jobs:
       IMAGE_BASE: docker.cloudsmith.io/streamnative/operators/flink-operator
 
     steps:
-      - name: Set up Go 1.16
+      - name: Set up Go 1.18
         uses: actions/setup-go@v1
         with:
-          go-version: 1.16
+          go-version: 1.18
         id: go
 
       - name: Check out code into the Go module directory

Dockerfile.builder

@@ -14,7 +14,7 @@ FROM ubuntu:20.04
 RUN apt update && apt install -yqq curl git make gcc
 
 # Install Go
-RUN curl -s https://dl.google.com/go/go1.16.13.linux-amd64.tar.gz | tar -xz -C /usr/local/
+RUN curl -s https://dl.google.com/go/go1.18.10.linux-amd64.tar.gz | tar -xz -C /usr/local/
 ENV GOROOT=/usr/local/go
 ENV PATH=${PATH}:${GOROOT}/bin
 
@@ -30,6 +30,7 @@ COPY go.sum go.sum
 
 # Cache deps before building so that we don't need to re-download as much
 # and so that source changes don't invalidate our downloaded layer.
+RUN go mod tidy
 RUN go mod download
 
 # Copy the project source code