CompatHelper: bump compat for "ProtoBuf" to "0.10"

[github-actions]

This pull request changes the compat entry for the ProtoBuf package from 0.7, 0.8 to 0.7, 0.8, 0.10.

This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry. It is your responsibility to make sure that your package tests pass before you merge this pull request.

[NHDaly]

It looks like the ProtoBuf API changes between 0.8 and 0.10, so we probably need to do some manual work here if we want this to succeed:

  UndefVarError: fillunset not defined
  Stacktrace:
   [1] PProf.perftools.profiles.ValueType(; kwargs::Base.Iterators.Pairs{Symbol, Int64, Tuple{Symbol, Symbol}, NamedTuple{(:_type, :unit), Tuple{Int64, Int64}}})
     @ PProf.perftools.profiles ~/build/JuliaPerf/PProf.jl/lib/profile_pb.jl:9
   [2] (::PProf.var"#ValueType!#4")(_type::String, unit::String)
     @ PProf ~/build/JuliaPerf/PProf.jl/src/PProf.jl:124
   [3] pprof(data::Nothing, lidict::Nothing; sampling_delay::Nothing, web::Bool, webhost::String, webport::Int64, out::String, from_c::Bool, full_signatures::Bool, drop_frames::Nothing, keep_frames::Nothing, ui_relative_percentages::Bool)
     @ PProf ~/build/JuliaPerf/PProf.jl/src/PProf.jl:136