Fix Inspector styled table with pandas 3 (applymap removed)

[u7k4rs6]

Summary

display_or_print_df styles the dataframe with df.style.applymap(...). Styler.applymap was deprecated in pandas 2.1 and removed in pandas 3.0, so with pandas 3 that line raises an AttributeError. The bare except around it swallows the error and falls back to the plain-text tabulate print, so in a notebook print_data_tabular() silently stops showing the styled table, no error anywhere.

The fix is just applymap -> map. Styler.map exists since pandas 2.1 and the repo already needs pandas>=2.2.2, so nothing else changes.

Test plan

Added test_display_or_print_df_in_ipython in devtools/inspector/tests/inspector_utils_test.py. It fakes the IPython modules, turns FutureWarning into an error (so it also catches the deprecated call on pandas 2.x), and checks the styled table goes to display() and nothing is printed. It fails on main and passes with the fix on pandas 3.0.6, and the rest of inspector_utils_test.py passes (93 tests). ufmt and flake8 are clean with the versions in requirements-lintrunner.txt.

cc @nil-is-all

[pytorch-bot]

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[u7k4rs6]

@pytorchbot label "release notes: devtools"