Deprecate importing `inject` from `@ember/service` #10015

Job	Run time
Type Checking (current version)	57s
Linting	1m 11s
Basic Test	2m 0s
Type Checking (other supported versions) (4.9)	1m 10s
Type Checking (other supported versions) (5.0)	1m 5s
Type Checking (other supported versions) (5.1)	1m 10s
Type Checking (other supported versions) (5.2)	1m 9s
Type Checking (other supported versions) (5.3)	1m 11s
Blueprint Tests	9m 56s
${{ matrix.name }}	0s
Browser Tests (Firefox)	0s
Browserstack Tests (Safari, Edge)	0s
Node.js Tests	0s
Smoke tests (Full Ember Apps)	0s
Publish alpha from default branch	0s
Deploy tags to npm	0s
Publish channel to s3	0s
Notify Discord	0s
	19m 49s

Provide feedback