Bump media3_version from 1.2.0 to 1.2.1

Bumps `media3_version` from 1.2.0 to 1.2.1.

Updates `androidx.media3:media3-exoplayer` from 1.2.0 to 1.2.1
- [Release notes](https://github.com/androidx/media/releases)
- [Changelog](https://github.com/androidx/media/blob/release/RELEASENOTES.md)
- [Commits](https://github.com/androidx/media/compare/1.2.0...1.2.1)

Updates `androidx.media3:media3-datasource-okhttp` from 1.2.0 to 1.2.1
- [Release notes](https://github.com/androidx/media/releases)
- [Changelog](https://github.com/androidx/media/blob/release/RELEASENOTES.md)
- [Commits](https://github.com/androidx/media/compare/1.2.0...1.2.1)

---
updated-dependencies:
- dependency-name: androidx.media3:media3-exoplayer
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: androidx.media3:media3-datasource-okhttp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         kotlin_version = '1.9.22'
         ksp_version = "1.0.17"
         agp_version = '8.2.2'
-        media3_version = "1.2.0"
+        media3_version = "1.2.1"
         splitties_version = '3.0.0'
         room_version = '2.6.1'
     }