Rename node_id to partition_id in Flower Datasets #8394

Job	Run time
Build, test and upload wheel	1m 33s
Framework / bare	2m 57s
Strategy / FedMedian	1m 22s
Framework / bare-https	1m 28s
Strategy / FedTrimmedAvg	1m 23s
Framework / jax	2m 5s
Strategy / QFedAvg	1m 9s
Framework / pytorch	2m 43s
Strategy / FaultTolerantFedAvg	1m 19s
Framework / tensorflow	3m 5s
Strategy / FedAvgM	1m 24s
Framework / tabnet	3m 4s
Strategy / FedAdam	1m 21s
Framework / opacus	3m 22s
Strategy / FedAdagrad	1m 47s
Framework / pytorch-lightning	2m 43s
Strategy / FedYogi	1m 20s
Framework / scikit-learn	2m 27s
Framework / fastai	4m 10s
Framework / pandas	1m 50s
	42m 32s

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