[DOCS] Adds limitation item about using scripts in transforms (#63021)
[DOCS] Adds limitation item about using scripts in transforms (#63021)

* [DOCS] Adds limitation item about using scripts in transforms.

* [DOCS] Adds scripts related limitation item to transforms docs.

* [DOCS] Merges two bullets, adds a new one, and removes last sentences.

* [DOCS] Refines last bullet.

* [DOCS] Addresses feedback.

* [DOCS] Removes low info content.
GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,robin13/elasticsearch,robin13/elasticsearch,nknize/elasticsearch,robin13/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,nknize/elasticsearch,nknize/elasticsearch,robin13/elasticsearch,nknize/elasticsearch,GlenRSmith/elasticsearch,nknize/elasticsearch,GlenRSmith/elasticsearch