docs: fixes incorrect comment in python sample

[anweshan]

The sample comment tag refers to the incorrect name of sample

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• samples/snippets/run_report_with_named_date_ranges.py:23, tag analyticsdata_run_report_with_named_date_ranges

You are about to delete 1 region tag.

• samples/snippets/run_report_with_named_date_ranges.py:23, tag analyticsdata_run_report_with_date_ranges

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