topology: Consume v6 alphas and build Penta demo

[nicolethoen]

Once the official alpha is announced, it should be pulled in to user feedback's v6 branch.

Also blocked until https://github.com/patternfly/react-topology/issues/133 is completed

The v6 branch should also be updated to include all changes made to the main branch since the v6 branch was created.

Once the code merges and a v6-alpha of this extension is available, it should be pulled into the v6 branch on org.

Update per @jenny-s51 on 4/23/24:

Will require splitting up this effort:

• [x] #181
• [ ] Apply tokens to styles

[nicolethoen]

Closed by https://github.com/patternfly/react-topology/pull/201