Update stgit to version 2.4.12 / rev 30 via SR 1202120
    
    https://build.opensuse.org/request/show/1202120
    by user pluskalm + anag+factory
    - Update to version 2.4.12:
      * fix(squash): preserve consensus author
      * chore: update changelog for 2.4.12
      * feat(push): revert overzealous modified status
      * chore: update windows-sys to 0.59.0
      * chore: update syn to 2.0.77
      * chore: update cc to 1.1.18
      * chore: update filetime to 0.2.25
      * chore: update schannel to 0.1.24
      * chore: update gix-path to 0.10.11
      * chore: update serde_json to 1.0.128
    - Switch to _service for fetching sources
    - Adresses boo#1230691 CVE-2024-45405