Update ApplicationInstance#visit to use followRedirects() #8016

Job	Run time
Type Checking (current version)	1m 1s
Linting	57s
Debug and Prebuilt (All Tests by Package + Canary Features)	5m 45s
Type Checking (other supported versions) (4.9)	1m 20s
Type Checking (other supported versions) (5.0)	1m 18s
Type Checking (other supported versions) (next)	1m 8s
Blueprint Tests	7m 45s
Production (All Tests + Canary Features)	0s
Browserstack Tests (Safari, Edge)	0s
Production (All Tests + Canary Features with Debug Render Tree)	0s
Smoke tests (Full Ember Apps)	0s
Browser Tests (Firefox)	0s
Extend Prototypes	0s
Node.js Tests	0s
Notify Discord	0s
Publish alpha from default branch	0s
Publish channel to s3	0s
Deploy tags to npm	0s
	19m 14s

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