Add metric for UDP client software when the client makes a wrong request.#1550

josecelano wants to merge 8 commits intotorrust:developtorrust/torrust-tracker:developfrom

josecelano:1456-overhaul-stats-add-the-peerclient-and-version-as-labels-to-metricsjosecelano/torrust-tracker:1456-overhaul-stats-add-the-peerclient-and-version-as-labels-to-metricsCopy head branch name to clipboard