catch and supress "to_datetime" FutureWarning deprecation

Author: KevsterAmp

pandas/io/json/_json.py

@@ -1210,7 +1210,7 @@ def _convert_axes(self) -> None:
                 name=axis_name,
                 data=ser,
                 use_dtypes=False,
-                convert_dates=True,
+                convert_dates=self.convert_dates,
                 is_axis=True,
             )
             if result:
@@ -1357,6 +1357,12 @@ def _try_convert_to_date(self, data: Series) -> tuple[Series, bool]:
                         "zones will raise an error",
                         category=FutureWarning,
                     )
+                    warnings.filterwarnings(
+                        "ignore",
+                        "The behavior of 'to_datetime' with 'unit' "
+                        "when parsing strings is deprecated.*",
+                        category=FutureWarning,
+                    )
                     new_data = to_datetime(new_data, errors="raise", unit=date_unit)
             except (ValueError, OverflowError, TypeError):
                 continue