chore: Upgrade to golangci-lint v2 (#7236)

Signed-off-by: Manuel Rüger <manuel@rueg.eu>

plugin/acl/setup.go

@@ -50,15 +50,16 @@ func parse(c *caddy.Controller) (ACL, error) {
 			p := policy{}
 
 			action := strings.ToLower(c.Val())
-			if action == "allow" {
+			switch action {
+			case "allow":
 				p.action = actionAllow
-			} else if action == "block" {
+			case "block":
 				p.action = actionBlock
-			} else if action == "filter" {
+			case "filter":
 				p.action = actionFilter
-			} else if action == "drop" {
+			case "drop":
 				p.action = actionDrop
-			} else {
+			default:
 				return a, c.Errf("unexpected token %q; expect 'allow', 'block', 'filter' or 'drop'", c.Val())
 			}