GH-75250 & GH-76401
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Validate extension JSON: Error: Hash changed for 'classes/RichTextLabel/methods/push_paragraph', from 3DD1D1C2 to BFDC71FE. This means that the function has changed and no compatibility function was provided.
Validate extension JSON: Error: Field 'classes/RichTextLabel/methods/push_paragraph/arguments': size changed value in new API, from 4 to 6.

Added a optional parameters with default values. No adjustments should be necessary.
