make h5parms writable again

steps/LoSoTo.Plot.cwl

@@ -18,7 +18,7 @@ requirements:
         entry: $(get_losoto_config('PLOT').join('\n'))
       - entryname: $(inputs.input_h5parm.basename)
         entry: $(inputs.input_h5parm)
-        writable: false
+        writable: true
       - entryname: run_losoto_plot.sh
         entry: |
           #!/bin/bash