[Dotenv] Add Dotenv::bootEnv() to check for .env.local.php before calling Dotenv::loadEnv()

Author: nicolas-grekas

Tests/Secrets/DotenvVaultTest.php

@@ -38,7 +38,7 @@ public function testEncryptAndDecrypt()
         $vault->seal('foo', $plain);
 
         unset($_SERVER['foo'], $_ENV['foo']);
-        (new Dotenv(false))->load($this->envFile);
+        (new Dotenv())->load($this->envFile);
 
         $decrypted = $vault->reveal('foo');
         $this->assertSame($plain, $decrypted);
@@ -50,7 +50,7 @@ public function testEncryptAndDecrypt()
         $this->assertFalse($vault->remove('foo'));
 
         unset($_SERVER['foo'], $_ENV['foo']);
-        (new Dotenv(false))->load($this->envFile);
+        (new Dotenv())->load($this->envFile);
 
         $this->assertArrayNotHasKey('foo', $vault->list());
     }

composer.json

@@ -37,7 +37,7 @@
         "symfony/console": "^4.4|^5.0",
         "symfony/css-selector": "^4.4|^5.0",
         "symfony/dom-crawler": "^4.4|^5.0",
-        "symfony/dotenv": "^4.4|^5.0",
+        "symfony/dotenv": "^5.1",
         "symfony/polyfill-intl-icu": "~1.0",
         "symfony/form": "^4.4|^5.0",
         "symfony/expression-language": "^4.4|^5.0",
@@ -71,7 +71,7 @@
         "symfony/asset": "<4.4",
         "symfony/browser-kit": "<4.4",
         "symfony/console": "<4.4",
-        "symfony/dotenv": "<4.4",
+        "symfony/dotenv": "<5.1",
         "symfony/dom-crawler": "<4.4",
         "symfony/http-client": "<4.4",
         "symfony/form": "<4.4",