Remove redundant default CI config

The settings here are already the default Tangled settings. I think omitting them makes it clearer what config is Wisp-specific.

docs/src/content/docs/cli.md

···
 
 engine: 'nixery'
 
-clone:
-  skip: false
-  depth: 1
-  submodules: false
-
 dependencies:
   nixpkgs:
     - nodejs