VictoryLine animate prop does not accept an object

**Describe the bug**
In the transition to typescript for VictoryLine a type override for the prop animate was made that breaks the typing. You can no longer give the animate prop an object without getting a type error. This is because it overrides the default of accepting a boolean or an object and now only accepts a boolean.

**Victory version**
36.5.4

**Expected behavior**
The VictoryLine animate prop should accept an object.

**Screenshots**
[The commit that caused the issue.](https://github.com/FormidableLabs/victory/commit/2d5e11159d4dc4137d7d57c6c7c2ae9e90913def)

See this commit, the addition at the bottom here that adds `animate: boolean` to the props is the culprit, it can be safely removed.

Start with the VictoryLine props definition and inspect the linked commit, especially the added animate type override. Confirm the existing animate object usage and remove the restriction that rejects it, then run the repository's TypeScript checks or relevant tests to verify object values are accepted.

Written by the indexing model from the issue text.