Support probabilistic_sampler for EDOT Collector

[yomduf]

Describe the enhancement:

Describe a specific use case for the enhancement or feature:

What is the definition of done?

The goal is to support the probabilistic_sampler for elastic agent as described here https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/processor/probabilisticsamplerprocessor/README.md

processors:
  memory_limiter:
  ...
  probabilistic_sampler:
    sampling_percentage: 50
    hash_seed: 22
  ...