feat: add homepage to item-relationship-service repo

[almadigabor]

Description

Based on request from IRS team. Fixes eclipse-tractusx/sig-infra#410.

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• Copyright and license header are present on all affected files

[github-actions]

Diff for 3c76437:

Printing local diff:

Actions are indicated with the following symbols:
+   create
!   modify
!   forced update
-   delete

Organization eclipse-tractusx[id=eclipse-tractusx]
  there have been 41 validation infos, enable verbose output with '-v' to to display them.

  
!   repository[name="item-relationship-service"] {
!     homepage                                                 = null -> "https://eclipse-tractusx.github.io/item-relationship-service/docs/"
!   }
  
  Plan: 0 to add, 1 to change, 0 to delete.

Canonical Diff for 3c76437:

Showing canonical diff:

Organization eclipse-tractusx[id=eclipse-tractusx]

[FaGru3n]

LGTM

[netomi]

change is live.