Investigate test failure

[tmigot]

Krylov cg: Error During Test at /home/runner/work/PartitionedVectors.jl/PartitionedVectors.jl/test/krylov.jl:26
  Got exception outside of a @test
  MethodError: no method matching SimpleStats(::Int64, ::Bool, ::Bool, ::Vector{Float32}, ::Vector{Float32}, ::Vector{Float32}, ::String)
  Closest candidates are:
    SimpleStats(::Int64, ::Bool, ::Bool, ::Vector{T}, ::Vector{T}, ::Vector{T}, ::Float64, ::String) where T at /home/runner/.julia/packages/Krylov/FdZzQ/src/krylov_stats.jl:21

found in #48