That never happened.
You should know better than to believe Russian talking points; they are never not lying. They are physically incapable of not lying. They cannot even fathom the idea of not lying. The mere thought that "truth" is a thing that exists causes them to shriek and recoil in terror.
Ukraine joined Partnership for Pace in 1994, same as the rest of the former Warsaw Pact. Then there was an "Individualized Partnership Action Plan" in 2002, and then an "Intensified Dialogue" in 2005. Nothing in 2008.
See, the thing is that a country doesn't really "apply to join NATO", that's not how it works. A country is invited to join by unanimous agreement, and then must ratify the treaty. Since 1999, this invitation can take the form of a "Membership Action Plan", which is a roadmap of things a country needs to do before it can join, this include resolving any and all border disputes. And so in 2008, it's Montenegro, Bosnia and Herzegovina, and Serbia which received such a MAP. Note that Serbia did not request such a thing, but they received it anyway; it was a diplomatic move so that they wouldn't feel threatened by the rest of their neighbors getting in.
Now it's true that a country can demand to be invited, and this is what Finland and Sweden have done recently. Ukraine did that... on the 30th of September 2022.