[DependencyInjection] feat(env processor): add doc/help on `APP_SECRET` env var not found exception#57422

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94noni wants to merge 1 commit intosymfony:7.2from

94noni:env-app-secret

Commits on Jun 17, 2024

feat(env processor): add doc/help on `APP_SECRET` env var not found exception
94noni
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