chore(deps): update dependency ember-load-initializers to v3 #3379

Job	Run time
Lint Addon	25s
Tests (ember-4.0, false)	1m 3s
Tests (Floating Dependencies)	50s
embroider-optimized - Allowed to fail	58s
Tests (ember-lts-4.4, false)	56s
Tests (ember-lts-4.8, false)	53s
ember-beta - Allowed to fail	57s
Lint Test App	27s
Tests (ember-4.12, false)	1m 4s
ember-canary - Allowed to fail	1m 8s
Tests (ember-lts-5.8, false)	1m 0s
Tests (ember-default, false)	54s
Tests (ember-release, false)	59s
Tests (embroider-safe, false)	58s
	12m 32s

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