add axon ivy devcontainer template (#557)

Co-authored-by: Álvaro Rausell Guiard <[email protected]>

Author: ivy-lmu

_data/collection-index.yml

@@ -1042,6 +1042,11 @@
   contact: https://github.com/grafana/devcontainer-features/issues
   repository: https://github.com/grafana/devcontainer-features
   ociReference: ghcr.io/grafana/devcontainer-features
+- name: Axon Ivy devcontainer template
+  maintainer: axonivy
+  contact: https://github.com/axonivy/devcontainer-templates/issues
+  repository: https://github.com/axonivy/devcontainer-templates
+  ociReference: ghcr.io/axonivy/devcontainer-templates
 - name: Dev Container Features by Coder
   maintainer: Coder
   contact: https://github.com/coder/devcontainer-features/issues