build: upgrade to go 1.19 (#25726)

This changes the CI / release builds to use the latest Go version. It also
upgrades golangci-lint to a newer version compatible with Go 1.19.

In Go 1.19, godoc has gained official support for links and lists. The
syntax for code blocks in doc comments has changed and now requires a
leading tab character. gofmt adapts comments to the new syntax
automatically, so there are a lot of comment re-formatting changes in this
PR. We need to apply the new format in order to pass the CI lint stage with
Go 1.19.

With the linter upgrade, I have decided to disable 'gosec' - it produces
too many false-positive warnings. The 'deadcode' and 'varcheck' linters
have also been removed because golangci-lint warns about them being
unmaintained. 'unused' provides similar coverage and we already have it
enabled, so we don't lose much with this change.

p2p/simulations/adapters/types.go

@@ -39,10 +39,9 @@ import (
 // Node represents a node in a simulation network which is created by a
 // NodeAdapter, for example:
 //
-// * SimNode    - An in-memory node
-// * ExecNode   - A child process node
-// * DockerNode - A Docker container node
-//
+//   - SimNode, an in-memory node in the same process
+//   - ExecNode, a child process node
+//   - DockerNode, a node running in a Docker container
 type Node interface {
 	// Addr returns the node's address (e.g. an Enode URL)
 	Addr() []byte

p2p/simulations/mocker.go

@@ -29,20 +29,20 @@ import (
 	"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
 )
 
-//a map of mocker names to its function
+// a map of mocker names to its function
 var mockerList = map[string]func(net *Network, quit chan struct{}, nodeCount int){
 	"startStop":     startStop,
 	"probabilistic": probabilistic,
 	"boot":          boot,
 }
 
-//Lookup a mocker by its name, returns the mockerFn
+// Lookup a mocker by its name, returns the mockerFn
 func LookupMocker(mockerType string) func(net *Network, quit chan struct{}, nodeCount int) {
 	return mockerList[mockerType]
 }
 
-//Get a list of mockers (keys of the map)
-//Useful for frontend to build available mocker selection
+// Get a list of mockers (keys of the map)
+// Useful for frontend to build available mocker selection
 func GetMockerList() []string {
 	list := make([]string, 0, len(mockerList))
 	for k := range mockerList {
@@ -51,7 +51,7 @@ func GetMockerList() []string {
 	return list
 }
 
-//The boot mockerFn only connects the node in a ring and doesn't do anything else
+// The boot mockerFn only connects the node in a ring and doesn't do anything else
 func boot(net *Network, quit chan struct{}, nodeCount int) {
 	_, err := connectNodesInRing(net, nodeCount)
 	if err != nil {
@@ -59,7 +59,7 @@ func boot(net *Network, quit chan struct{}, nodeCount int) {
 	}
 }
 
-//The startStop mockerFn stops and starts nodes in a defined period (ticker)
+// The startStop mockerFn stops and starts nodes in a defined period (ticker)
 func startStop(net *Network, quit chan struct{}, nodeCount int) {
 	nodes, err := connectNodesInRing(net, nodeCount)
 	if err != nil {
@@ -96,10 +96,10 @@ func startStop(net *Network, quit chan struct{}, nodeCount int) {
 	}
 }
 
-//The probabilistic mocker func has a more probabilistic pattern
-//(the implementation could probably be improved):
-//nodes are connected in a ring, then a varying number of random nodes is selected,
-//mocker then stops and starts them in random intervals, and continues the loop
+// The probabilistic mocker func has a more probabilistic pattern
+// (the implementation could probably be improved):
+// nodes are connected in a ring, then a varying number of random nodes is selected,
+// mocker then stops and starts them in random intervals, and continues the loop
 func probabilistic(net *Network, quit chan struct{}, nodeCount int) {
 	nodes, err := connectNodesInRing(net, nodeCount)
 	if err != nil {
@@ -159,7 +159,7 @@ func probabilistic(net *Network, quit chan struct{}, nodeCount int) {
 	}
 }
 
-//connect nodeCount number of nodes in a ring
+// connect nodeCount number of nodes in a ring
 func connectNodesInRing(net *Network, nodeCount int) ([]enode.ID, error) {
 	ids := make([]enode.ID, nodeCount)
 	for i := 0; i < nodeCount; i++ {