GH-109142
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Validate extension JSON: Error: Field 'classes/CPUParticles3D/methods/request_particles_process/arguments': size changed value in new API, from 1 to 2.
Validate extension JSON: Error: Field 'classes/CPUParticles2D/methods/request_particles_process/arguments': size changed value in new API, from 1 to 2.
Validate extension JSON: Error: Field 'classes/GPUParticles2D/methods/request_particles_process/arguments': size changed value in new API, from 1 to 2.
Validate extension JSON: Error: Field 'classes/GPUParticles3D/methods/request_particles_process/arguments': size changed value in new API, from 1 to 2.
Validate extension JSON: Error: Field 'classes/RenderingServer/methods/particles_request_process_time/arguments': size changed value in new API, from 2 to 3.

Optional argument added. Compatibility methods registered.
