Secret variables for request not getting version control

[LuccaRomanelli]

In the enviroments we have an option to have Secret values like

This is really usefull for tokens that for evrery creation you get one diferent.

I was thinking that a good implemetention for this would be in vars of request like:

If I could get this variables to be secret I could have values for this and when I change in muy local it does not get version control, leaving free to change the contens of body and query params witchout the need to version control it

[helloanoop]

Closing as it is being tracked in #5039