Granular canonicalization metrics dashboard update

[solidoracle]

fixes #5337

[Rjected]

great start, I don't think the values on the left are actually ms, since it's a histogram graph I'm pretty sure they're percentiles. Instead of using the histogram graph, could we have a line graph that shows 50/90/95/99/99.9 percentiles? I find them easier to understand than the heatmaps, but open to other opinions

[Rjected]

This looks good to me now, and works locally, thanks!

[shekhirin]

@solidoracle hey, sorry I didn't notice this PR, so it will be a delayed review. Let me know if you have time and want to finish the dashboard, otherwise no worries, we will fix the remaining issues 🙂

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1. I believe the unit is incorrect, the value should be around 400ms. The metrics are reported in seconds.
2. We should filter the query by selected instance, see other charts. Otherwise, with multiple instances, you get all of them on the charts.
3. Can we unify reth_blockchain_tree_make_canonical_duration into one chart with action selector and reth_storage_providers_database_duration into the other with the similar selector, so we don't have a very long dashboard? That way, we'll still be able to see all actions separately, but the charts will take less space.

[solidoracle]

hey @shekhirin, will fix in follow-up PR👍🏻