[FIX] tool-update: Compare tool versions correctly

[edvilme]

Addresses #43089 and https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2288480

When attempting to update a package to a new version, a check is made to ensure the same version is not installed twice. However, this check currently ignores the version suffix, which means users cannot update between versions with different release tags.

[dsplaisted]

Good fix! Is it possible to add a test covering this case?

[v-sherryfan]

@dsplaisted Will this fix be backported to .NET 9.0? It still blocks NET9.0 updrage tooling scenario.

[dsplaisted]

@marcpopMSFT Can we consider this for 9.0 servicing? If not, we should at least put it in 9.0.200 I think.

[baronfel]

Would +1 backporting this.

[marcpopMSFT]

Yeah, seems like it's broken for every prerelease version. I don't know how common that is for tools but seems like a pretty critical scenario. Do we know when it broke though? edvilme indicated it's been this way for a while. If a while, then 9.0.2xx. If recent, 9.0.1xx.

[edvilme]

Just checked again and it seems this behavior was introduced in #41746 on June so it would be relatively recent (I wrongly remembered it was from a lot of time ago)

[marcpopMSFT]

That makes it a regression in 9 so I'd support porting to 9.0.101.

[edvilme]

/backport to release/9.0.1xx

[github-actions]

Started backporting to release/9.0.1xx: https://github.com/dotnet/sdk/actions/runs/12241074698