chore(org): retarget release workflow to RunicGateway/link

Repo was transferred UOM -> RunicGateway. The REPO env var drives both
the git push URL (bump commit + tag) and the release API base, so the
release workflow would otherwise still target the old UOM/link path.

.gitea/workflows/release.yml

@@ -22,7 +22,7 @@
 #   nothing releasable        -> no release is cut
 #   (first ever run, no tag)  -> releases the current Cargo.toml version as-is
 #
-# Prerequisites (Settings → Actions → Secrets on UOM/link):
+# Prerequisites (Settings → Actions → Secrets on RunicGateway/link):
 #   REGISTRY_USER   — Gitea username the token below belongs to
 #   REGISTRY_TOKEN  — Gitea access token. For image builds it needed
 #                     write:package; THIS workflow additionally needs
@@ -46,7 +46,7 @@ concurrency:
 
 env:
   GITEA_HOST: gitea.whitlocktech.com
-  REPO: UOM/link
+  REPO: RunicGateway/link
   WORKDIR: sidecar
   BIN: uo-link-sidecar
   LINUX_TARGET: x86_64-unknown-linux-gnu