Pin Go to 1.16.x temporarily
The `controller-gen` tool adds "go:build" lines when built with Go 1.17.
Issue: [ch12565]
See:
@@ -13,7 +13,7 @@ jobs:
- uses: actions/checkout@v2
- uses: actions/setup-go@v2
with:
- go-version: 1.x
+ go-version: 1.16.x
- run: make check
- run: make check-generate
