Document that generated passwords should not be used in production

[philwebb]

Related to #30061, we should also update our reference documentation with a similar notice.

[nitishsaini706]

Hi @philwebb I would like to work on this , issue please assign me

[scottfrederick]

@nitishsaini706 Thank you for the offer, we'll assign the issue to you.

The generated password and property to change it is mentioned in the documentation here. The notice should be added to this section. Please let us know if you have any further questions.

[nitishsaini706]

@scottfrederick How do I access this documentation ,
Shall I first mention this issue in Github README file

[wilkinsona]

It turned out that the changes for #30061 required a documentation update that addressed this issue at the same time. Thanks again for the offer, @nitishsaini706, and sorry for any wasted effort.