Memory issue/leak with Tracing enabled

[jamescrosswell]

Running the following program with tracing enabled results in increasing memory usage which does not appear to be cleaned up by GC.

Sample program

SentrySdk.Init(o =>
{
    o.Dsn = "https://d4d82fc1c2c4032a83f3a29aa3a3aff@fake-sentry.io:65535/2147483647";
    o.Release = "release";
    o.TracesSampleRate = 1.0;
});

while(true)
{
    DoWork();
}

void DoWork()
{
    var transaction = SentrySdk.StartTransaction("name", "operation");

    for (var i = 0; i < 10; i++)
    {
        var span = transaction.StartChild("operation");
        Console.WriteLine($"{i}: {Fibonacci(i)}");
        span.Finish();
    }

    transaction.Finish();

    int Fibonacci(int n) => n switch
    {
        0 => 0,
        1 => 1,
        _ => Fibonacci(n - 1) + Fibonacci(n - 2)
    };
}

Memory profile

Targeting net6.0...