Fix ociReference formatting in collection-index.yml (#621)

Author: AntonZheng

_data/collection-index.yml

@@ -1244,7 +1244,7 @@
   maintainer: Azure EdgeActions Developer Experiences Team
   contact: https://github.com/Azure/edgeactions-devcontainers/issues
   repository: https://github.com/Azure/edgeactions-devcontainers
-  ociReference: ghcr.io/Azure/edgeactions-devcontainers/edgeactions
+  ociReference: ghcr.io/Azure/edgeactions-devcontainers
 - name: Git Absorb Feature
   maintainer: baxyz
   contact: https://github.com/baxyz/devcontainer-features/issues