all: ensure b.ReportAllocs() in all the benchmarks (#8460)

With this change, we'll get details on the number of
allocations performed by code. Later on when we have
continuous benchmarking infrastructure, this change
will prove useful to flag regressions.

Fixes #8459

Co-authored-by: Alessio Treglia <alessio@tendermint.com>

x/auth/keeper/keeper_bench_test.go

@@ -7,6 +7,7 @@ import (
 )
 
 func BenchmarkAccountMapperGetAccountFound(b *testing.B) {
+	b.ReportAllocs()
 	app, ctx := createTestApp(false)
 
 	// assumes b.N < 2**24