metrics: Expose a MetricsUtils.withSingleMetric overload that doesn't require metric name/value/unit

[humanzz]

Is your feature request related to a problem? Please describe.

MetricsUtils.withSingleMetric - MetricsUtils.java - provides a nice utility to hide the creation, configuration and publishing of metrics. The existing overloads however, assume that the user needs to know the name/value/unit of at least the first metric to add. This is not always true. I'd like to provide a Consumer<MetricLogger> that will add metrics based on some conditional logic.

The main use case my team has

1. We're emitting a number of metrics - ~10 metrics - that all have the same config (e.g. dimensions) that's meant to be different from MetricsUtils.metricsLogger() i.e. we need a new metrics logger instance
2. The names of those metrics are generated dynamically - think loops, appending different constants - to generate those names

So, ideally, we create a new instance of a metrics logger, and then rely on to emit those 10 different metrics.

Describe the solution you'd like

Introduce a new method, an overload of MetricsUtils.withSingleMetric or even a new name MetricsUtils.withMetric as follows

public static void withMetric(Consumer<MetricsLogger> logger) {
        MetricsLogger metricsLogger = logger();

        try {
            metricsLogger.setNamespace(defaultNameSpace());
            captureRequestAndTraceId(metricsLogger);
            logger.accept(metricsLogger);
        } finally {
            metricsLogger.flush();
        }
    }

which would allow the user to freely configure and add metrics via their provided Consumer<MetricsLogger>

Describe alternatives you've considered

Additional context

[humanzz]

Hello powertools team, any chance now that reinvent and holidays are almost over to check the PR for this issue?