Safe-load .env only if exists to prevent fatal error during site install.

[normanlolx]

Seems #584 accidentally swapped safe-loading (only if exists) the .env file with a simple load() which now causes a fatal on drush site:install. Let's switch load() back to safeLoad().

$ drush -y si --account-name=admin --account-pass=admin

Fatal error: Uncaught Dotenv\Exception\InvalidPathException: Unable to read any of the environment file(s) at [/Users/leymannx/Sites/d9/.env]. in /Users/leymannx/Sites/d9/vendor/vlucas/phpdotenv/src/Store/FileStore.php:68
Stack trace:
#0 /Users/leymannx/Sites/d9/vendor/vlucas/phpdotenv/src/Dotenv.php(222): Dotenv\Store\FileStore->read()
#1 /Users/leymannx/Sites/d9/load.environment.php(18): Dotenv\Dotenv->load()
#2 /Users/leymannx/Sites/d9/vendor/composer/autoload_real.php(75): require('/Users/leymannx...')
#3 /Users/leymannx/Sites/d9/vendor/composer/autoload_real.php(65): composerRequire62f8ceaa89421c6aefe473318c51d739('d511210698f02d8...', '/Users/leymannx...')
#4 /Users/leymannx/Sites/d9/vendor/autoload.php(7): ComposerAutoloaderInit62f8ceaa89421c6aefe473318c51d739::getLoader()
#5 /Users/leymannx/Sites/d9/vendor/drush/drush/drush.php(56): include_once('/Users/leymannx...')
#6 /Users/leymannx/Sites/d9/vendor/drush/drush/includes/preflight.inc(18): require('/Users/leymannx...')
#7 phar:///usr/local/bin/drush/bin/drush.php in /Users/leymannx/Sites/d9/vendor/vlucas/phpdotenv/src/Store/FileStore.php on line 68

[owenbush]

Yes, I stumbled across this today too, this is blowing up my CircleCI pipelines for Drupal 9 builds.

Fatal error: Uncaught Dotenv\Exception\InvalidPathException: Unable to read any of the environment file(s) at [/home/circleci/project/build/.env]. in /home/circleci/project/build/vendor/vlucas/phpdotenv/src/Store/FileStore.php on line 68

Dotenv\Exception\InvalidPathException: Unable to read any of the environment file(s) at [/home/circleci/project/build/.env]. in /home/circleci/project/build/vendor/vlucas/phpdotenv/src/Store/FileStore.php on line 68

Call Stack:
    0.0001     398432   1. {main}() /home/circleci/project/build/vendor/drush/drush/drush:0
    0.0004     410216   2. require('/home/circleci/project/build/vendor/drush/drush/drush.php') /home/circleci/project/build/vendor/drush/drush/drush:4
    0.0005     411432   3. include_once('/home/circleci/project/build/vendor/autoload.php') /home/circleci/project/build/vendor/drush/drush/drush.php:56
    0.0007     425736   4. ComposerAutoloaderInit79ff7fd1b7eb8ce20350371ca2fbb080::getLoader() /home/circleci/project/build/vendor/autoload.php:7
    0.0133    1875200   5. composerRequire79ff7fd1b7eb8ce20350371ca2fbb080($fileIdentifier = 'd511210698f02d87ca48e3972f64323e', $file = '/home/circleci/project/build/vendor/composer/../../load.environment.php') /home/circleci/project/build/vendor/composer/autoload_real.php:65
    0.0134    1876624   6. require('/home/circleci/project/build/load.environment.php') /home/circleci/project/build/vendor/composer/autoload_real.php:75
    0.0173    2148368   7. Dotenv\Dotenv->load() /home/circleci/project/build/load.environment.php:18
    0.0173    2148368   8. Dotenv\Store\FileStore->read() /home/circleci/project/build/vendor/vlucas/phpdotenv/src/Dotenv.php:222