composer requireでPHP extension ext-httpが出た際の解決方法

環境

mac
docker
php7.4

問題

composer requireを実行した際に以下のエラーが発生しました。

Problem 1
    - Root composer.json requires PHP extension ext-http * but it is missing from your system. Install or enable PHP's http extension.

To enable extensions, verify that they are enabled in your .ini files:
    - /usr/local/etc/php/php.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-bcmath.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-intl.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-pdo_mysql.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-sodium.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-zip.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

解決方法

composer.jsonから"ext-http": "*"を消す。