Fix source maps in published packages #10314

Job	Run time
Linting	1m 3s
Type Checking (current version)	57s
Basic Test	1m 29s
Type Checking (other supported versions) (5.0)	1m 1s
Type Checking (other supported versions) (5.1)	1m 0s
Type Checking (other supported versions) (5.2)	1m 0s
Type Checking (other supported versions) (5.3)	1m 1s
Type Checking (other supported versions) (5.4)	1m 1s
Type Checking (other supported versions) (5.5)	1m 9s
Type Checking (other supported versions) (5.6)	1m 9s
Type Checking (other supported versions) (5.7)	1m 1s
Blueprint Tests	4m 50s
Smoke tests (Full Ember Apps) (classic-basics)	1m 23s
Browserstack Tests (Safari, Edge)	4m 27s
Smoke tests (Full Ember Apps) (embroider-basics)	1m 15s
Browser Tests (Firefox)	1m 42s
Node.js Tests	1m 0s
All deprecations enabled	1m 26s
All deprecations enabled, with optional features	1m 18s
Deprecations as errors	1m 22s
Deprecations as errors, with optional features	1m 18s
Production build	1m 17s
Production build, with optional features	1m 13s
Deploy tags to npm	0s
Publish channel to s3	0s
Publish alpha from default branch	0s
Notify Discord	0s
	34m 22s

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