Incorrect keyword arguments handling in MethodProfiler

[simpl1g]

Patched method that has keyword arguments can raise error

require 'bundler/inline'

gemfile do
  gem 'prometheus_exporter', '2.1.0'
end

require 'prometheus_exporter/instrumentation/method_profiler'

class Test
  def method(sql, cache: false, **settings)
    puts "sql -> #{sql}"
    puts "cache -> #{cache}"
    puts "settings -> #{settings}"
  end
end

PrometheusExporter::Instrumentation::MethodProfiler.patch(Test, [:method], :some_name, instrument: :prepend)

t = Test.new

t.method('select * from table')
# sql -> select * from table
# cache -> false
# settings -> {}

t.method('select * from table', cache: true, other_setting: false)
# => wrong number of arguments (given 2, expected 1) (ArgumentError)

@SamSaffron I can create pull request that:

• increases minimal Ruby version to 3.0, 2.7 is already EOL for a year
• changes arguments in wrapped method to ..., it was introduced in 2.7 => https://ryanbigg.com/2021/07/ruby-27s-new-triple-dot-syntax def #{method_name}(...)

Are you ok with these changes?