chore(lint): upgrade golangci-lint to v1.47.2

- Fix Slowloris attacks on HTTP servers
- Force set default of 5 minutes for pprof read timeout
- Change `ShutdownTimeout` to time.Duration since it cannot be set to 0

internal/configuration/settings/helpers/merge.go

@@ -107,7 +107,14 @@ func MergeWithIP(existing, other net.IP) (result net.IP) {
 	return result
 }
 
-func MergeWithDuration(existing, other *time.Duration) (result *time.Duration) {
+func MergeWithDuration(existing, other time.Duration) (result time.Duration) {
+	if existing != 0 {
+		return existing
+	}
+	return other
+}
+
+func MergeWithDurationPtr(existing, other *time.Duration) (result *time.Duration) {
 	if existing != nil {
 		return existing
 	}