Update collection-index.yml (#604)

* Update collection-index.yml

Add ghcr.io/daniellindemann/dev-container-features repo of Daniel Lindemann to the collection

* update respository url for 'Dev Container Features by Daniel Lindemann'

---------

Co-authored-by: Daniel Lindemann <d.lindemann@abtis.de>
Co-authored-by: Álvaro Rausell Guiard <33221237+AlvaroRausell@users.noreply.github.com>

Author: 3 people

_data/collection-index.yml

@@ -1155,6 +1155,11 @@
   contact: https://github.com/RyanLua/templates/issues
   repository: https://github.com/RyanLua/templates
   ociReference: ghcr.io/ryanlua/templates
+- name: Dev Container Features by Daniel Lindemann
+  maintainer: Daniel Lindemann
+  contact: https://github.com/daniellindemann/dev-container-features/issues
+  repository: https://github.com/daniellindemann/dev-container-features/tree/main/src/dotnet-usersecrets-persistence
+  ociReference: ghcr.io/daniellindemann/dev-container-features
 - name: Starship
   maintainer: Tobias Chavarria
   contact: https://github.com/tobiaschc/devcontainer-features/issues