In recent Dotenv versions `getenv()` is discouraged.

[wivaku]

In recent Dotenv versions getenv() is discouraged.
https://github.com/vlucas/phpdotenv#putenv-and-getenv

The current code relies on getenv():

php-jira-rest-client/src/Configuration/DotEnvConfiguration.php

Line 56 in f4d872d

$value = getenv($key);

Should be $_ENV[$key] instead.

Originally posted by @wivaku in #319 (comment)

[wivaku]

BTW. the mentioned Dotenv::createUnsafeImmutable() did not seem to work as workaround for existing getenv().

[lesstif]

@wivaku thanks!