E2E

Replace `Fwd/Bwd` with `Message/Context` #6298

Job	Run time
Build, test and upload wheel	3m 3s
Strategy / FedMedian	1m 18s
Strategy / FedTrimmedAvg	1m 13s
Framework / bare	2m 37s
Strategy / QFedAvg	1m 5s
Strategy / FaultTolerantFedAvg	2m 2s
Framework / bare-https	2m 39s
Strategy / FedAvgM	1m 8s
Framework / jax	2m 51s
Strategy / FedAdam	1m 17s
Framework / pytorch	2m 52s
Strategy / FedAdagrad	1m 14s
Framework / tensorflow	2m 52s
Strategy / FedYogi	1m 21s
Framework / tabnet	2m 51s
Framework / opacus	2m 50s
Framework / pytorch-lightning	2m 52s
Framework / mxnet	2m 52s
Framework / scikit-learn	2m 51s
Framework / fastai	2m 52s
Framework / pandas	2m 52s
	47m 32s

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