chore: Update maintainer and ociReference according to guidlines

Author: mrhornsby

_data/collection-index.yml

@@ -1477,7 +1477,7 @@
   repository: https://github.com/nkdui/devcontainer-features
   ociReference: ghcr.io/nkdui/devcontainer-features
 - name: trunk-rs devcontainer feature
-  maintainer: Mark Hornsby (mrhornsby)
+  maintainer: mrhornsby
   contact: https://github.com/mrhornsby/trunk-devcontainer-feature/issues
   repository: https://github.com/mrhornsby/trunk-devcontainer-feature
-  ociReference: ghcr.io/mrhornsby/trunk-devcontainer-feature/trunk
+  ociReference: ghcr.io/mrhornsby/trunk-devcontainer-feature