test

Resend: add support for send_at #532

Job	Run time
get-envlist	10s
lint	47s
django51-py312-all	32s
django40-py38-all	33s
docs	28s
django51-py310-all	33s
django51-py311-all	32s
django50-py310-all	33s
django50-py311-all	31s
django50-py312-all	34s
django42-py38-all	37s
django42-py39-all	32s
django42-py310-all	34s
django42-py311-all	33s
django42-pypy38-all	1m 46s
django42-pypy39-all	1m 12s
django41-py38-all	44s
django41-py39-all	32s
django41-py310-all	33s
django41-pypy38-all	1m 47s
django41-pypy39-all	1m 2s
django40-py39-all	33s
django40-py310-all	34s
django40-pypy38-all	1m 48s
django40-pypy39-all	1m 2s
djangoDev-py310-all allow-failures	42s
djangoDev-py311-all allow-failures	39s
djangoDev-py312-all allow-failures	50s
djangoDev-py313-all allow-failures	49s
django51-py312-none	23s
django51-py312-amazon_ses	35s
django51-py312-postal	26s
django51-py312-resend	28s
	23m 54s

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