Conditionally escape yoga http duration histogram

[klippx]

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

We are using hive-gateway and the prometheus plugin. We want to conditionally use graphql_yoga_http_duration for certain operations only, but it can only always be used or never be used.

Describe the solution you'd like

    metrics: {
      graphql_yoga_http_duration: createHistogram({
        registry,
        histogram: {
          name: 'graphql_yoga_http_duration',
          help: 'Time spent on HTTP connection',
          labelNames: ['operation_name'],
          buckets: HISTOGRAM_BUCKET_DIMENSIONS,
        },
        fillLabelsFn: ({ operationName }, _rawContext) => ({
          operation_name: operationName,
        }),
        // A hook to decide when recording should be made
        shouldRecordFn: ({ operationName }, _rawContext) =>
          TRACKED_OPERATIONS.includes(operationName),
      }),
    },

Describe alternatives you've considered

Build our own middleware stack mostly duplicating everything