message: fix alert repo name
diff: @@ -63,7 +63,7 @@ steps:
  from_secret: slack_webhook
  template:
  - |
  - signer-repo build status: *{{ uppercasefirst build.status }}*
  + casperlabs-node build status: *{{ uppercasefirst build.status }}*
  Author: {{ build.author }}
  Drone Build: <{{ build.link }}|#{{ build.number }}>
  Commit Link: <https://github.com/{{repo.owner}}/{{repo.name}}/commit/{{build.commit}}|{{ truncate build.commit 10 }}>
  