Datapipe workflow does not work with current translation system

This is the current CWL delivered with datapipe for processing dl0 to dl1: (from https://gitlab.cta-observatory.org/cta-computing/dpps/datapipe/datapipe/-/blob/main/workflows/process_dl0_dl1.cwl?ref_type=heads)

%YAML 1.1
---
cwlVersion: v1.2
class: CommandLineTool
baseCommand:
  - ctapipe-process
  - --DataWriter.write_dl1_parameters=True
  - --DataWriter.write_dl2=False
doc: |
  Processes a single file from DL0 to DL1 using the ctapipe-process tool.
  (DPPS-UC-130-1.2.1)
label: process single dl0 to dl1
inputs:
  processing_config:
    type: File?
    inputBinding:
      prefix: --config
    doc: |
      Sets the reconstruction parameters that apply to DL0 to DL1.
      See `ctapipe-process --help-all` for a list of all options, or the output
      of `ctapipe-quickstart` for sample configuration files.

  dl0:
    type: [File, string]
    doc: |
      path to input file, which can be at any data level transformable to DL1
      that is supported by the installed ctapipe io plugins. I can also be a
      URL.
    inputBinding:
      prefix: --input

  dl1_filename:
    type: string
    doc: name of the DL1 output file
    inputBinding:
      prefix: --output

  provenance_log_filename:
    type: string
    doc: file in which to write the local ctapipe-process provenance.
    default: ctapipe-process_dl0_dl1.provenance.log
    inputBinding:
      prefix: --provenance-log

outputs:
  dl1:
    type: File
    doc: HDF5 format output file.
    outputBinding:
      glob: $(inputs.dl1_filename)

  provenance_log:
    type: File
    doc: ctapipe format provenance log for this step.
    outputBinding:
      glob: $(inputs.provenance_log_filename)

Using this inputs file:

dl0: lfn://ctao/simpipe/prod6/gamma-diffuse/010xxx/gamma_cone10_run010000.simtel.zst 
dl1_filename: lfn://ctao/datapipe/test.dl1.h5

The inputs and outputs do not seem to be handled correctly:

In [2]: from CTADIRAC.Interfaces.API.CWLJob import CWLJob

In [3]: job = CWLJob("./process_dl0_dl1.cwl", "inputs.yaml", "/cvmfs/sw.cta-observatory.org/")

In [5]: job.input_data
Out[5]: []

In [6]: job.output_data
Out[6]: []

The output_sandbox contains un-evaluated references:

In [7]: job.output_sandbox
Out[7]: ['$(inputs.dl1_filename)', '$(inputs.provenance_log_filename)']