feat(config): wire id_generator from declarative configuration to TracerProvider (#5363)

* feat(config): wire id_generator from declarative configuration to TracerProvider

* add changelog fragment

* fix: add _additional_properties decorator to IdGenerator model

* fix: rename changelog to .added, pass plugin kwargs, add hasattr check

* fix: apply ruff formatting

* fix: apply ruff formatting

* Apply suggestion from @xrmx

* Apply suggestion from @xrmx

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Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>