chore: regenerate README.md [skip ci]

README.md

@@ -49,6 +49,7 @@ Container | Channel | Image
 --- | --- | ---
 [cni-plugins](https://github.com/mglants/containers/pkgs/container/cni-plugins) | stable | ghcr.io/mglants/cni-plugins
 [emonoda](https://github.com/mglants/containers/pkgs/container/emonoda) | stable | ghcr.io/mglants/emonoda
+[gammu-telegram](https://github.com/mglants/containers/pkgs/container/gammu-telegram) | stable | ghcr.io/mglants/gammu-telegram
 [kea-dhcp](https://github.com/mglants/containers/pkgs/container/kea-dhcp) | stable | ghcr.io/mglants/kea-dhcp
 [kea-dhcp-sidecar](https://github.com/mglants/containers/pkgs/container/kea-dhcp-sidecar) | stable | ghcr.io/mglants/kea-dhcp-sidecar
 [matchbox](https://github.com/mglants/containers/pkgs/container/matchbox) | stable | ghcr.io/mglants/matchbox