ci: bump ExoPlayer from 7fe9ecc to 029a2b2 (#16)

Bumps [ExoPlayer](https://github.com/google/ExoPlayer) from `7fe9ecc` to `029a2b2`.
- [Release notes](https://github.com/google/ExoPlayer/releases)
- [Commits](google/ExoPlayer@7fe9ecc...029a2b2)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>