Include zetta's collection of features (#498)

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

Author: zetta

_data/collection-index.yml

@@ -966,6 +966,12 @@
   maintainer: David Zucker
   contact: https://github.com/davzucky/devcontainers-features-wolfi/issues
   repository: https://github.com/davzucky/devcontainers-features-wolfi
+  ociReference: ghcr.io/davzucky/devcontainers-features-wolfi
+- name: devcontainer features by zetta
+  maintainer: zetta
+  contact: https://github.com/zetta/devcontainer-features/issues
+  repository: https://github.com/zetta/devcontainer-features
+  ociReference: ghcr.io/zetta/devcontainer-features
   ociReference: ghcr.io/davzucky/devcontainers-features-wolfi  
 - name: devcontainer features for ubuntugis
   maintainer: Conner Shoop