Braintacle 1.9

Upgrading from previous versions:

• Required: Run "composer install" from the Braintacle root directory to
  update dependencies.

• Recommended: The above step may leave the directory public/components behind.
  It is no longer used and should be deleted manually.

Security:

• This release updates the laminas-form component with a fix for
  GHSA-jq4p-mq33-w375.

Misc:

• Server: Backported changes from version 2.9.

• Server: Respond with 405 status code for non-POST requests instead of 403.