psubscribe method issues

[tanmaykm]

Invoking psubscribe with the Dict parameter (naively) as below:

psubscribe(subs, Dict("cha??el" => y->pattern_matched(y.message)))

throws error:

Pub/Sub: Error During Test at /data/HOME/.julia/dev/Redis/test/redis_tests.jl:390
  Got exception outside of a @test
  MethodError: no method matching psubscribe(::SubscriptionConnection,
::Dict{String, var"#16#21"{var"#pattern_matched#19"{Vector{Any}}}})
  
  Closest candidates are:
    psubscribe(::SubscriptionConnection, ::AbstractString, ::Function)
     @ Redis ~/.julia/dev/Redis/src/commands.jl:343
    psubscribe(::SubscriptionConnection, ::Dict{AbstractString, Function})
     @ Redis ~/.julia/dev/Redis/src/commands.jl:348  

It must be invoked with Dict{AbstractString,Function} like below, which is a bit awkward:

psubscribe(subs, Dict("cha??el" => y->pattern_matched(y.message)))

But it then throws another error:

Pub/Sub: Error During Test at /data/HOME/.julia/dev/Redis/test/redis_tests.jl:390
  Got exception outside of a @test
  MethodError: Cannot `convert` an object of type String to an object of type Function
  
  Closest candidates are:
    convert(::Type{T}, ::T) where T
     @ Base Base.jl:64
  
  Stacktrace:
    [1] pushfirst!(a::Vector{Function}, item::String)
      @ Base ./array.jl:1407
    [2] _psubscribe(conn::SubscriptionConnection, patterns::Vector{Function})
      @ Redis ~/.julia/dev/Redis/src/commands.jl:340
    [3] psubscribe(conn::SubscriptionConnection, subs::Dict{AbstractString, Function})
      @ Redis ~/.julia/dev/Redis/src/commands.jl:352
    [4] macro expansion
      @ /data/HOME/.julia/dev/Redis/test/redis_tests.jl:410 [inlined]
    [5] macro expansion
      @ /data/Work/julia/binaries/julia-1.9.4/share/julia/stdlib/v1.9/Test/src/Test.jl:1498 [inlined]

because here the _psubscribe method should have been passed the collection of keys instead of values. Seems like a typo there.

[tanmaykm]

Will put up a PR soon.
Planning to also add a psubscribe_data method, similar to what was done in #95 when subscribe_data was added.