Modify ociReference for fexec in collection-index

Updated ociReference for fexec entry in collection index.

Author: AlvaroRausell

_data/collection-index.yml

@@ -1261,4 +1261,4 @@
   maintainer: roboslone
   contact: https://github.com/roboslone/go-framework/issues
   repository: https://github.com/roboslone/go-framework/tree/main/src/fexec
-  ociReference: ghcr.io/roboslone/go-framework/fexec
+  ociReference: ghcr.io/roboslone/go-framework