Bump serde from 1.0.214 to 1.0.216 #2019

Job	Run time
Wheel on macos-13 py-3.8	1m 40s
Wheel on ubuntu-latest py-3.8	2m 0s
Wheel on windows-latest py-3.8	3m 39s
Checks	59s
coverage	7m 16s
Run fuzz targets (macos-13, 3.8)	20m 11s
Unit tests (macos-13, 3.8)	5m 19s
Run fuzz targets (ubuntu-latest, 3.8)	14m 42s
Unit tests (ubuntu-latest, 3.8)	3m 27s
Unit tests (windows-latest, 3.8)	6m 30s
Upload to PyPI	12s
	1h 5m 55s

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