Update mp4 requirement from 0.13.0 to 0.14.0 in /sdk (#595)

Updates the requirements on [mp4](https://github.com/alfg/mp4-rust) to permit the latest version.
- [Release notes](https://github.com/alfg/mp4-rust/releases)
- [Commits](alfg/mp4-rust@0.13.0...0.14.0)

---
updated-dependencies:
- dependency-name: mp4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Gavin  Peacock <gpeacock@adobe.com>

sdk/Cargo.toml

@@ -101,7 +101,7 @@ log = "0.4.8"
 lopdf = { version = "0.31.0", optional = true }
 lazy_static = "1.4.0"
 memchr = "2.7.1"
-mp4 = "0.13.0"
+mp4 = "0.14.0"
 pem = "3.0.2"
 png_pong = "0.9.1"
 rand = "0.8.5"