chore: Update to Go v1.21

- go mod tidy (all modules)
- go work sync
- Fixed plugin generation for Go 1.21
- Updated linting for Go 1.21
- Fixed minecraft example for Helm v3 pull download path
- Update dev docs to mention Go 1.21
- Regenerate plugins with Go 1.21

functions/examples/injection-tshirt-sizes/image/Dockerfile

@@ -1,7 +1,7 @@
 # Copyright 2019 The Kubernetes Authors.
 # SPDX-License-Identifier: Apache-2.0
 
-FROM golang:1.20-bullseye
+FROM golang:1.21-bullseye
 ENV CGO_ENABLED=0
 WORKDIR /go/src/
 COPY go.mod .

functions/examples/injection-tshirt-sizes/image/go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/kustomize/functions/examples/injection-tshirt-sizes
 
-go 1.20
+go 1.21
 
 require sigs.k8s.io/kustomize/kyaml v0.13.7
 

functions/examples/injection-tshirt-sizes/image/go.sum

@@ -684,6 +684,7 @@ rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=
+sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
 sigs.k8s.io/kustomize/kyaml v0.13.7 h1:/EZ/nPaLUzeJKF/BuJ4QCuMVJWiEVoI8iftOHY3g3tk=
 sigs.k8s.io/kustomize/kyaml v0.13.7/go.mod h1:6K+IUOuir3Y7nucPRAjw9yth04KSWBnP5pqUTGwj/qU=
 sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=