That's not the only problem: some of the tests mix timestamps in
slightly different formats (with and without fractional seconds), which
is no longer allowed by default:
https://pandas.pydata.org/pandas-docs/version/2.1.4/whatsnew/v2.0.0.html#datetimes-are-now-parsed-with-a-consistent-format
The fix I currently have at
https://salsa.debian.org/rnpalmer-guest/influxdb-python
avoids this by changing the test data format, but I don't know enough
about influxdb-python to say whether this is something that would come
up in actual use.
