collection-index.yml: add feature 'perl' (devcontainers#465)

* Update collection-index.yml

* Update _data/collection-index.yml

Co-authored-by: Samruddhi Khandale <[email protected]>

---------

Co-authored-by: Samruddhi Khandale <[email protected]>
Co-authored-by: Samruddhi Khandale <[email protected]>

Author: haukex

_data/collection-index.yml

@@ -923,6 +923,11 @@
   contact: https://github.com/lx-0/devcontainer-templates/issues
   repository: https://github.com/lx-0/devcontainer-templates
   ociReference: ghcr.io/lx-0/devcontainer-templates
+- name: Hauke's Features for Development Containers
+  maintainer: Hauke D
+  contact: https://github.com/haukex/devcontainer-features/issues
+  repository: https://github.com/haukex/devcontainer-features
+  ociReference: ghcr.io/haukex/devcontainer-features
 - name: Devcontainer features by vmvarela
   maintainer: Victor M. Varela
   contact: https://github.com/vmvarela/devcontainer-features/issues