Upgrade golang to 1.17

Author: thomaspeitz

.github/workflows/go.yml

@@ -15,7 +15,7 @@ jobs:
  - name: Set up Go 1.x
  uses: actions/setup-go@v2
  with:
- go-version: ^1.15
+ go-version: ^1.17
  id: go
 
  - name: Check out code into the Go module directory

.tool-versions

@@ -0,0 +1 @@
+golang 1.17

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.15 as builder
+FROM golang:1.17 as builder
 
 WORKDIR /opt/