(maint) Change from `pull_request_target` to `pull_request` #438

Job	Run time
spec (windows-2019, General)	2m 24s
spec (windows-2019, Unit)	6m 48s
spec (windows-2022, General)	1m 55s
spec (windows-2022, Unit)	2m 57s
acceptance (windows-2019, Basic, forge)	8m 17s
acceptance (windows-2019, Basic, git)	8m 10s
acceptance (windows-2022, Basic, forge)	9m 55s
acceptance (windows-2022, Basic, git)	8m 47s
	49m 13s

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