Add Nebur692's Repository (ha-pass-invitations and ha-login-approval)

[Nebur692]

Adding my repositories so two Docker containers can be picked up by the CA feed. This PR was originally for ha-pass-invitations only; I have since published a second container, so it now adds both entries.

1. ha-pass-invitations — scheduled guest access for Home Assistant entities (time-boxed invitation links, local-network restriction, per-country/IP allowlist).

• Support thread: https://forums.unraid.net/topic/200003-support-hapass-invitations-nebur692/
• Template: https://raw.githubusercontent.com/Nebur692/ha-pass-invitations/main/ha-pass-invitations.xml
• Icon: https://raw.githubusercontent.com/Nebur692/ha-pass-invitations/main/docs/icon.png
• Image: ghcr.io/nebur692/ha-pass-invitations (public, multi-tag including :latest)

2. ha-login-approval — passwordless sign-in approved from a Home Assistant push notification, acting as a generic external OIDC identity provider (ZITADEL, Keycloak, Authentik, or any standards-compliant relying party).

• Support thread: https://forums.unraid.net/topic/200264-support-ha-login-approval-nebur692/
• Template: https://raw.githubusercontent.com/Nebur692/ha-login-approval/main/ha-login-approval.xml
• Icon: https://raw.githubusercontent.com/Nebur692/ha-login-approval/main/.github/images/ha-login-approval_logo.png
• Image: ghcr.io/nebur692/ha-login-approval (public, multi-tag including :latest)

Both templates have their <Support> field pointing at the forum thread listed above, and both images are public on GHCR.