Update symfony/dotenv requirement from ^5.4 to ^6.0

[dependabot]

Updates the requirements on symfony/dotenv to permit the latest version.

Release notes

Sourced from symfony/dotenv's releases.

v6.0.19

Changelog (symfony/dotenv@v6.0.18...v6.0.19)

• no significant changes

Changelog

Sourced from symfony/dotenv's changelog.

CHANGELOG

6.2

• Add a new filter argument to debug:dotenv command to filter variable names

5.4

• Add dotenv:dump command to compile the contents of the .env files into a PHP-optimized file called .env.local.php
• Add debug:dotenv command to list all dotenv files with variables and values
• Add $overrideExistingVars on Dotenv::bootEnv() and Dotenv::loadEnv()

5.1.0

• added Dotenv::bootEnv() to check for .env.local.php before calling Dotenv::loadEnv()
• added Dotenv::setProdEnvs() and Dotenv::usePutenv()
• made Dotenv's constructor accept $envKey and $debugKey arguments, to define the name of the env vars that configure the env name and debug settings
• deprecated passing $usePutenv argument to Dotenv's constructor

5.0.0

• using putenv() is disabled by default

4.3.0

• deprecated use of putenv() by default. This feature will be opted-in with a constructor argument to Dotenv

4.2.0

• added Dotenv::overload() and $overrideExistingVars as optional parameter of Dotenv::populate()
• added Dotenv::loadEnv() to load a .env file and its corresponding .env.local, .env.$env and .env.$env.local files if they exist

3.3.0

• [BC BREAK] Since v3.3.7, the latest Dotenv files override the previous ones. Real env vars are not affected and are not overridden.
• added the component

Commits

• 9cee123 Merge branch '5.4' into 6.0
• 38190ba Bump license year to 2023
• 1c2288f Merge branch '5.4' into 6.0
• 83a2310 [Dotenv] Fix reading config for symfony/runtime when running dump command
• 45c47b6 Merge branch '5.4' into 6.0
• 84d1af2 [Dotenv] Fix bootEnv() override with .env.local.php when the env key already ...
• 5496865 Merge branch '5.4' into 6.0
• 0c5aee5 Merge branch '5.3' into 5.4
• f040844 Merge branch '4.4' into 5.3
• fcedd6d Bump license year
• Additional commits viewable in compare view

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[dependabot]

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