Automated submodule update: vrs (#145)

Summary:
This is an automated pull request to update the first-party submodule for [facebookresearch/vrs](https://github.com/facebookresearch/vrs).

New submodule commit: facebookresearch/vrs@5037983

Pull Request resolved: #145

Test Plan: Ensure that CI jobs succeed on GitHub before landing.

Reviewed By: georges-berenger

Differential Revision: D68161136

fbshipit-source-id: 323f627a52f230a533b2cf41b0c4a9b5ea10fd8a