Enable skip_list by default in 3.3

[asimmahmood1]

Is your feature request related to a problem? Please describe

In 3.2 skip_list was added to numeric fields with default value of false: #18889. In 3.3 we want to enable it by default.

Describe the solution you'd like

After proving there is little to no regression in index time and index size (bytes), skiplist can be used for various types of queries (related issues).

Related component

Core

Describe alternatives you've considered

Keep skip_list was false, allow use to opt-in.

• the main downside is that this will require updating many mappings, which requirements time and commitment from users.
• given the benefits outweight the cost, this will limit the impact of change

Additional context

none

[andrross]

@asimmahmood1 Can you add some more details here? Please remove the _No response_ label and add the appropriate component label. If you plan to work on it you can remove the untriaged label as well. Thanks!