feat: add Gitea private secure template and Passbolt template

[UserCr4ig]

Changes

• Added new Gitea template with secure configuration for private hosting
• Added Passbolt template for team password management
• Updated service-templates.json to include new templates

Issues

• While reviewing existing Gitea templates, I noticed significant security concerns in their default configurations. Rather than modifying existing templates (which could impact current deployments and require extensive environment changes), I opted to create a new "gitea-private-secure" template that implements security best practices by default. This includes:
  • Enforced private visibility (this was public by default)
  • Brute force protection
  • Session security
  • API restrictions
  • Attack surface reduction
  • User access controls

This approach allows existing users to maintain their current setups while providing a secure alternative for new deployments.

[peaklabs-dev]

Thanks for the PR, can you please change the following things:

1. Please do not commit service-templates.json to the PR.
2. Can you please add your security enhancement to the current Gitea template, as already deployed instances will not get the new template, only new deployments will use the new compose file, so there is no need to create a separate template for this.