[FSSDK-11197] EventTags type fix for v5 (#1040) #1168

Job	Run time
lint	1m 5s
crossbrowser_and_umd_unit_tests	2m 42s
lint_markdown_files / lint	53s
unit_tests (14)	2m 18s
unit_tests (16)	2m 13s
fullstack_production_suite / test	4s
integration_tests / test	6s
unit_tests (18)	2m 11s
unit_tests (20)	1m 58s
Coveralls coverage	5s
	13m 35s

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