summary.py: clearing and writing Google spreadsheet in one go

[ZuinigeRijder]

One slower computers (I have an old raspberry Pi from 2012), the time between clearing Google Spreadsheet and writing new data can be relative long, especially with data over a year. That means, that if you look at the Google Spreadsheet on a phone or another computer, the spreadsheet can be cleared and only after e.g. a minute the new data is visible.

Changed summary.py, that clearing and writing is done in one go, at the end.

Requirements.txt: reference hyundai_kia_connect_api v3.10.8, because it solved a problem: fix(EU): strptime error #444

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This discussion was created from the release summary.py: clearing and writing Google spreadsheet in one go.