Xcode asking for keychain I don't recognise to codesign my development teams project

It's very unfortunate, but due to some circumstances I can't get into none of the developers on my team is well versed in iOS build tooling, so we're having real trouble figuring this out...
When trying to build a dev version of my teams project on a device through Xcode, I get asked to provide a password to a keychain that I did not create, and do not recognise.
The name of the keychain their asking for has this format Apple Development: My Real Name (My team name).

I have never used this keychain before, and have no idea where it comes from or what the password is. Is happening because of some setting on my end? Or is this some project-wide setting, where the team has a common password to codesign?
Xcode asking for keychain I don't recognise to codesign my development teams project
 
 
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