MailTemplateInstance with attachments

[jota-coelho]

Description

Hi...
I need send mails using io.quarkus.mailer.MailTemplateInstance with byte[] attachments.
In version 2.16.1-Final the only method addInlineAttachemet accept just File.

MailTemplateInstance addInlineAttachment(String name, File file, String contentType, String contentId);

Implementation ideas

Please, implement this method:

public addInlineAttachment(String name, byte[] data, String contentType, String contentId)

[quarkus-bot]

/cc @cescoffier (mailer)