Add debugging info for `StorageWeightReclaim` (#5594)

When inspecting the logs we often encounter the following message:

`Benchmarked storage weight smaller than consumed storage weight.
benchmarked: {benchmarked_weight} consumed: {consumed_weight} unspent:
{unspent}`

However, it is very hard to guess which call is causing the issue.

With the changes proposed in this PR, information about the call is
provided so that we can easily identify the source of the problem
without further delay, and this way work more efficiently in solving the
issue.

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
(cherry picked from commit 016421ac)

cumulus/primitives/storage-weight-reclaim/src/lib.rs

@@ -183,13 +183,15 @@ where
 			if consumed_weight > benchmarked_weight {
 				log::error!(
 					target: LOG_TARGET,
-					"Benchmarked storage weight smaller than consumed storage weight. benchmarked: {benchmarked_weight} consumed: {consumed_weight} unspent: {unspent}"
+					"Benchmarked storage weight smaller than consumed storage weight. extrinsic: {} benchmarked: {benchmarked_weight} consumed: {consumed_weight} unspent: {unspent}",
+					frame_system::Pallet::<T>::extrinsic_index().unwrap_or(0)
 				);
 				current.accrue(Weight::from_parts(0, storage_size_diff), info.class)
 			} else {
 				log::trace!(
 					target: LOG_TARGET,
-					"Reclaiming storage weight. benchmarked: {benchmarked_weight}, consumed: {consumed_weight} unspent: {unspent}"
+					"Reclaiming storage weight. extrinsic: {} benchmarked: {benchmarked_weight} consumed: {consumed_weight} unspent: {unspent}",
+					frame_system::Pallet::<T>::extrinsic_index().unwrap_or(0)
 				);
 				current.reduce(Weight::from_parts(0, storage_size_diff), info.class)
 			}

prdoc/pr_5594.prdoc

+# Schema: Polkadot SDK PRDoc Schema (prdoc) v1.0.0
+# See doc at https://raw.githubusercontent.com/paritytech/polkadot-sdk/master/prdoc/schema_user.json
+
+title: "Add debugging info for `StorageWeightReclaim`"
+
+doc:
+  - audience: Runtime Dev
+    description: |
+      - Includes extrinsic index to be displayed in the logs when the consumed weight is higher than the measured one.
+
+crates:
+  - name: cumulus-primitives-storage-weight-reclaim
+    bump: patch