rabbitmq_tracing: explicitly specify UTF-8 encoding for served trace files (backport #14966)#14970

michaelklishin merged 5 commits intov4.2.xrabbitmq/rabbitmq-server:v4.2.xfrom

mergify/bp/v4.2.x/pr-14966rabbitmq/rabbitmq-server:mergify/bp/v4.2.x/pr-14966Copy head branch name to clipboard