Não consigo instalar o composer

Já tentei de tudo e não funciona o composer install nesse curso PHP e Behavior Driven Development: BDD com Behat Utilizo o windows 10 e não funciona. composer install

{
  "autoload": {
    "psr-4": {
        "Alura\\Armazenamento\\": "src/"
    }
  },
  "require": {
    "psr/http-message": "^1.0",
    "psr/http-server-handler": "^1.0",
    "nyholm/psr7": "^1.1",
    "nyholm/psr7-server": "^0.3.0",
    "doctrine/orm": "^2.6",
    "php-di/php-di": "^6.0"
  },
  "require-dev": {
    "behat/behat": "dev-master as 3.6",
    "behat/mink": "dev-symfony5 as 1.7.999",
    "behat/mink-extension": "dev-patch-4",
    "behat/mink-goutte-driver": "^1.2"
  },
  "repositories": [
    {
      "type": "vcs",
      "url": "https://github.com/japicoder/Behat"
    },
    {
      "type": "vcs",
      "url": "https://github.com/larzuk91/Symfony2Extension"
    },
    {
      "type": "vcs",
      "url": "https://github.com/ruudk/DoctrineDataFixturesExtension"
    },
    {
      "type": "vcs",
      "url": "https://github.com/DonCallisto/MinkExtension",
      "comment": "Waiting for https://github.com/Behat/MinkExtension/pull/355"
    },
    {
      "type": "vcs",
      "url": "https://github.com/ruudk/MinkBrowserKitDriver"
    },
    {
      "type": "vcs",
      "url": "https://github.com/breizh81/Mink"
    }
  ]
}

da esse erro Install of behat/mink failed, Install of behat/mink-extension failed

  [RuntimeException]
  Failed to execute git clone --no-checkout "https://xxx:***@github.com/breizh81/Mink.git.git" "C:\projeto-inicial-bd
  d\gerenciador-de-cursos\vendor\behat\mink" && cd /D "C:\projeto-inicial-bdd\gerenciador-de-cursos\vendor\behat\mink
  " && git remote add composer "https://xxx:***@github.com/breizh81/Mink.git.git" && git fetch composer && git remote
   set-url origin "https://github.com/breizh81/Mink.git.git" && git remote set-url composer "https://github.com/breiz
  h81/Mink.git.git"

  Cloning into 'C:\projeto-inicial-bdd\gerenciador-de-cursos\vendor\behat\mink'...
  fatal: unable to access 'https://xxx:***@github.com/breizh81/Mink.git.git/': error:1407742E:SSL routines:SSL23_GET_
  SERVER_HELLO:tlsv1 alert protocol version

E quando roda o comando

C:\projeto-inicial-bdd\gerenciador-de-cursos>php vendor/bin/behat -s e2e
Could not open input file: vendor/bin/behat

Aguardo resposta

Att: Cezar Maruca