Fix running tests with all deprecations enabled. #8954

Job	Run time
Basic Test	1m 51s
Linting	1m 10s
Type Checking (current version)	49s
Type Checking (other supported versions) (4.9)	1m 14s
Type Checking (other supported versions) (5.0)	1m 9s
Type Checking (other supported versions) (5.1)	1m 8s
Type Checking (other supported versions) (5.2)	1m 9s
Type Checking (other supported versions) (5.3)	1m 8s
Blueprint Tests	8m 18s
Node.js Tests	51s
Browserstack Tests (Safari, Edge)	2m 20s
All deprecations enabled	1m 38s
Browser Tests (Firefox)	1m 57s
All deprecations enabled, with optional features	1m 39s
Deprecations as errors	1m 41s
Deprecations as errors, with optional features	1m 46s
Smoke tests (Full Ember Apps) (classic-basics)	1m 39s
Production build	1m 41s
Smoke tests (Full Ember Apps) (embroider-basics)	1m 35s
Production build, with optional features	1m 43s
Extend prototypes	1m 45s
Extend prototypes, with optional features	1m 54s
Prebuilt	1m 42s
Publish channel to s3	0s
Deploy tags to npm	0s
Notify Discord	0s
Publish alpha from default branch	0s
	41m 47s

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