Craft CMS Project Config file override
I'm not familiar with this plugin, but could probably do this in your template where the plugin is called:

// Get the environment
{% set env = getenv('ENVIRONMENT') %}

// If anything but dev, then load the plugin
{% if env != 'dev' %}
    {% include ['_recaptcha/frontend'] %} 
{% endif %}


You can also get the environment from the config:

{% set env = craft.app.config.env %}