Fix pandas 3.0 to_dict() positional arguments in pm4py/util/pandas_utils.py

[jyf593]

Summary

pm4py/util/pandas_utils.py uses positional arguments to DataFrame.to_dict(), which pandas has deprecated in favor of the orient= keyword.

Deprecation context

Deprecated allowing non-keyword arguments in DataFrame.to_dict().

---

Occurrence 1 — to_dict_records() (~line 60)

Link: https://github.com/process-intelligence-solutions/pm4py/blob/release/pm4py/util/pandas_utils.py#L60

Before:

return df.to_dict("records")

After (suggested):

return df.to_dict(orient="records")

---

Occurrence 2 — to_dict_index() (~line 83)

Link: https://github.com/process-intelligence-solutions/pm4py/blob/release/pm4py/util/pandas_utils.py#L83

Before:

return df.to_dict("index")

After (suggested):

return df.to_dict(orient="index")

---

Both changes are behavior-preserving forward-compat fixes for pandas 3.x. Happy to open a PR if preferred.

[fit-alessandro-berti]

Thanks, we did a much deeper cleanup of Pandas 3.0 deprecations