Add EdgeActions DevContainer Templates (#607)

Co-authored-by: Álvaro Rausell Guiard <33221237+AlvaroRausell@users.noreply.github.com>

Author: AntonZheng

_data/collection-index.yml

@@ -1220,6 +1220,11 @@
   contact: https://github.com/navinkrishnan/devcontainer-templates-btp/issues
   repository: https://github.com/navinkrishnan/devcontainer-templates-btp
   ociReference: ghcr.io/navinkrishnan/devcontainer-templates-btp
+- name: EdgeActions Dev Container Templates
+  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
 - name: Git Absorb Feature
   maintainer: baxyz
   contact: https://github.com/baxyz/devcontainer-features/issues