[BUG] string compilation failures around input_offsetalator and a missing member d_sizes

[abellina]

We are seeing some new string compilation failures due to recent changes in cuDF:

08:11:53  [INFO]      [exec] /target/libcudf-install/include/cudf/strings/detail/strings_children.cuh(176): error: class "spark_rapids_jni::detail::<unnamed>::decimal_to_non_ansi_string_fn<int32_t>" has no member "d_sizes"
08:11:53  [INFO]      [exec]           detected during:
08:11:53  [INFO]      [exec]             instantiation of "auto cudf::strings::detail::make_strings_children(SizeAndExecuteFunction, cudf::size_type, cudf::size_type, rmm::cuda_stream_view, rmm::device_async_resource_ref) [with SizeAndExecuteFunction=spark_rapids_jni::detail::<unnamed>::decimal_to_non_ansi_string_fn<int32_t>]"
08:11:53  [INFO]      [exec] (244): here
08:11:53  [INFO]      [exec]             instantiation of "auto cudf::strings::detail::make_strings_children(SizeAndExecuteFunction, cudf::size_type, rmm::cuda_stream_view, rmm::device_async_resource_ref) [with SizeAndExecuteFunction=spark_rapids_jni::detail::<unnamed>::decimal_to_non_ansi_string_fn<int32_t>]"
08:11:53  [INFO]      [exec] /src/main/cpp/src/cast_decimal_to_string.cu(190): here
08:11:53  [INFO]      [exec]             instantiation of "std::unique_ptr<cudf::column, std::default_delete<cudf::column>> spark_rapids_jni::detail::<unnamed>::dispatch_decimal_to_non_ansi_string_fn::operator()<T,<unnamed>>(const cudf::column_view &, rmm::cuda_stream_view, rmm::mr::device_memory_resource *) const [with T=numeric::decimal32, <unnamed>=(void *)nullptr]"
08:11:53  [INFO]      [exec] /target/libcudf-install/include/cudf/utilities/type_dispatcher.hpp(534): here

08:11:53  [INFO]      [exec] /target/libcudf-install/include/cudf/strings/detail/strings_children.cuh(184): error: no suitable conversion function from "cudf::detail::input_offsetalator" to "cudf::size_type *" exists
08:11:53  [INFO]      [exec]           detected during:
08:11:53  [INFO]      [exec]             instantiation of "auto cudf::strings::detail::make_strings_children(SizeAndExecuteFunction, cudf::size_type, cudf::size_type, rmm::cuda_stream_view, rmm::device_async_resource_ref) [with SizeAndExecuteFunction=spark_rapids_jni::detail::<unnamed>::decimal_to_non_ansi_string_fn<int32_t>]"
08:11:53  [INFO]      [exec] (244): here
08:11:53  [INFO]      [exec]             instantiation of "auto cudf::strings::detail::make_strings_children(SizeAndExecuteFunction, cudf::size_type, rmm::cuda_stream_view, rmm::device_async_resource_ref) [with SizeAndExecuteFunction=spark_rapids_jni::detail::<unnamed>::decimal_to_non_ansi_string_fn<int32_t>]"
08:11:53  [INFO]      [exec] /src/main/cpp/src/cast_decimal_to_string.cu(190): here
08:11:53  [INFO]      [exec]             instantiation of "std::unique_ptr<cudf::column, std::default_delete<cudf::column>> spark_rapids_jni::detail::<unnamed>::dispatch_decimal_to_non_ansi_string_fn::operator()<T,<unnamed>>(const cudf::column_view &, rmm::cuda_stream_view, rmm::mr::device_memory_resource *) const [with T=numeric::decimal32, <unnamed>=(void *)nullptr]"
08:11:53  [INFO]      [exec] /target/libcudf-install/include/cudf/utilities/type_dispatcher.hpp(534): here

[ttnghia]

Broken due to rapidsai/cudf#15702. We need to adapt to the changes there.