Symfony version(s) affected: 5.3.0-BETA2

Description

bin/console does not load env variables from .env.local when being run. This leads to errors when trying to composer install --no-dev in a production environment.

How to reproduce

Use 5.3.0-BETA2, add APP_ENV=prod to .env.local and run bin/console cache:clear. On 5.3.0-BETA2 this displays the following:

[OK] Cache for the "dev" environment (debug=true) was successfully cleared.

When running in 5.2.0 the output is correct:

[OK] Cache for the "prod" environment (debug=false) was successfully cleared.

Possible Solution
Load .env files when starting bin/console