[BUG] plot_title messes up layout

[yha]

Details

plot((heatmap(rand(20,20), cbar=false, ticks=false) for _ = 1:50)...,
           layout=(5,10), size=(1000,500),
           plot_title="foo"
           )

The first column is too wide.
Without plot_title, the layout is fine:

Backends

This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)	x
pyplot		x
plotlyjs			x
pgfplotsx			x
unicodeplots			x
inspectdr			x
gaston			x

Versions

Plots.jl version: 1.36.6
Backend version (]st -m <backend(s)>): 0.71.1
Output of versioninfo():

julia> versioninfo()
Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)

[EldarAgalarov]

This bug is probably related to #4612 and #4610.