Bump ember-template-lint from 5.11.0 to 7.0.2 in /smoke-test-app #1252

Job	Run time
Lint	21s
Tests	24s
Floating Dependencies	23s
format('Smoke Tests (Node v{0} with npm)', matrix.node)	0s
Tests (commands smoke test)	0s
Smoke Tests (Windows)	0s
format('Smoke Tests (Node v{0} with yarn)', matrix.node)	0s
	1m 8s

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