* metrics: tests: Fix flaky runtime_can_publish_metrics
When an re-org happens wait_for_blocks(2) would actually exit after the second
import of blocks 1, so the conditions for the metric to exist won't be met
hence the occasional test failure.
More details in:
https://github.com/paritytech/polkadot/issues/7267
Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>
* metrics: tests: Cleanup un-needed box pin
Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>
---------
Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>