ci: use go1.20 compiler

.github/workflows/go.yml

@@ -17,10 +17,10 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.15
+      - name: Set up Go 1.20.10
         uses: actions/setup-go@v3
         with:
-          go-version: 1.15
+          go-version: 1.20.10
         id: go
 
       - name: Check out code into the Go module directory
@@ -31,21 +31,17 @@ jobs:
           sudo apt-get install git libnetfilter-queue-dev libmnl-dev libpcap-dev protobuf-compiler
           export GOPATH=~/go
           export PATH=$PATH:$GOPATH/bin
-          go get github.com/golang/protobuf/protoc-gen-go
-          go install google.golang.org/protobuf/cmd/protoc-gen-go
-          go get google.golang.org/grpc/cmd/protoc-gen-go-grpc
+          go install github.com/golang/protobuf/protoc-gen-go@latest
+          go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
           cd proto
           make ../daemon/ui/protocol/ui.pb.go
-          go get -v -t -d ./...
-          if [ -f Gopkg.toml ]; then
-              curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
-              dep ensure
-          fi
+          cd ../daemon
+          go mod tidy; go mod vendor
 
       - name: Build
         run: |
           cd daemon
-          go mod tidy
           go build -v .
       - name: Test
         run: |