build(deps): bump MU_BASECORE from 96e8877 to 6bdf6f8

Bumps [MU_BASECORE](https://github.com/microsoft/mu_basecore) from `96e8877` to `6bdf6f8`.
- [Release notes](https://github.com/microsoft/mu_basecore/releases)
- [Commits](microsoft/mu_basecore@96e8877...6bdf6f8)

---
updated-dependencies:
- dependency-name: MU_BASECORE
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>