ParamSpecArray: fix type_ from fraction to array
This fixes an typo in the ParamSpecArray definition, where the type_ was gst_param_spec_fraction_get_type() but instead it should be gst_param_spec_array_get_type().
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This fixes an typo in the ParamSpecArray definition, where the type_ was gst_param_spec_fraction_get_type() but instead it should be gst_param_spec_array_get_type().