Prepare v8 release #2573

Job	Run time
linter	40s
linter_gui	2m 3s
unit_tests (1.63, ubuntu-latest)	2m 50s
unit_tests (1.63, macOS-latest)	2m 32s
unit_tests (1.63, windows-latest)	4m 30s
unit_tests (nightly, ubuntu-latest)	1m 6s
unit_tests (nightly, macOS-latest)	1m 3s
unit_tests (nightly, windows-latest)	2m 27s
unit_tests_gui (1.71.1, ubuntu-latest)	3m 38s
unit_tests_gui (1.71.1, macOS-latest)	3m 51s
unit_tests_gui (1.71.1, windows-latest)	6m 51s
unit_tests_gui (nightly, ubuntu-latest)	2m 56s
unit_tests_gui (nightly, macOS-latest)	3m 15s
unit_tests_gui (nightly, windows-latest)	6m 2s
	43m 44s

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